Free Mathematics Books

Here is an unordered list of online mathematics books, textbooks, monographs, lecture notes, and other mathematics related documents freely available on the web. I tried to select only the works in book formats, "real" books that are mainly in PDF format, so many well-known html-based mathematics web pages and online tutorials are left out. Click here if you prefer a categorized directory of mathematics books. The list is updated on a daily basis, so, if you want to bookmark this page, use one of the buttons below.

1. Introduction to Proof Theory
   Gilles Dowek | ESSLLI, Published in 2001, 82 pages
2. Numerical Recipes in Fortran 90
   William H. Press, at al. | Cambridge University Press, Published in 1996, 500 pages
3. Analytic Combinatorics
   Philippe Flajolet, Robert Sedgewick | Cambridge University Press, Published in 2008, 822 pages
4. High School Mathematics Extensions
   Zhuo Jia Dai, Martin Warmer, Tom Lam | Wikibooks, Published in 2008, 250 pages
5. Intersection Graphs: An Introduction
   Madhumangal Pal | arXiv, Published in 2014, 49 pages
6. Functional Analysis with Applications
   Palle Jorgensen, Feng Tian | arXiv, Published in 2014, 338 pages
7. Constructive Geometry
   John G. Kerr | Blackie And Son Limited., Published in 1904, 135 pages
8. Introduction to Mathematical Analysis
   B. Lafferriere, G. Lafferriere, N. Mau Nam | Portland State University Library, Published in 2015, 141 pages
9. Frobenius Splittings and B-Modules
   Wilberd van der Kallen | Springer, Published in 1993, 112 pages
10. New Perspectives in Algebraic Combinatorics
    Louis J. Billera, at al. | Cambridge University Press, Published in 1999, 345 pages
11. Pseudodifferential Operators and Nonlinear PDE
    Michael E. Taylor | Birkhäuser Boston, Published in 1991, 202 pages
12. Entropy and Partial Differential Equations
    Lawrence C. Evans | UC Berkeley, Published in 2003, 213 pages
13. A Course of Elementary Mathematics
    John Radford Young | Wm. H. Allen, Published in 1862, 658 pages
14. Noncompact Harmonic Manifolds
    Gerhard Knieper, Norbert Peyerimhoff | arXiv, Published in 2013, 84 pages
15. Calculus with Analytic Geometry
    Richard H. Crowell, William E. Slesnick | W W Norton & Co Inc, Published in 2008, 662 pages
16. Elementary Practical Mathematics
    John Perry | The Macmillan Company, Published in 1913, 364 pages
17. Notes on Noncommutative Geometry
    Igor Nikolaev | arXiv, Published in 2015, 309 pages
18. Theory of Symmetry and Ornament
    Slavik V. Jablan | Matematicki Institut, Published in 1995, 331 pages
19. Theory of Groups of Finite Order
    William Burnside | Cambridge University Press, Published in 1897, 456 pages
20. Linear Partial Differential Equations and Fourier Theory
    Marcus Pivato | Cambridge University Press, Published in 2005, 619 pages
21. Linear Algebra
    Peter Petersen | UCLA, Published in 2007, 300 pages
22. The Art of Logic
    Nuel Belnap | University of Pittsburgh, Published in 2009, 314 pages
23. Theory of Functions of a Complex Variable
    Andrew Russell Forsyth | Cambridge University Press, Published in 1918, 892 pages
24. Symbolic Logic: A Second Course
    Gary Hardegree | UMass Amherst, Published in 2003, 246 pages
25. Applied Stochastic Processes in Science and Engineering
    Matt Scott | University of Waterloo, Published in 2013, 316 pages
26. Plane and Solid Analytic Geometry
    W. F. Osgood, W. C. Graustein | Macmillan and co., Published in 1921, 651 pages
27. Course of Linear Algebra and Multidimensional Geometry
    Ruslan Sharipov | Samizdat Press, Published in 1996, 143 pages
28. Nonlinear Fourier Analysis
    Terence Tao, Christoph Thiele | arXiv, Published in 2012, 98 pages
29. The Elements of Solid Geometry
    William C. Bartol | Leach, Shewell & Sanborn, Published in 1893, 112 pages
30. Elementary Analytic Functions: Complex Functions Theory a-1
    Leif Mejlbro | BookBoon, Published in 2010, 145 pages
31. Lectures on Holomorphic Curves in Symplectic and Contact Geometry
    Chris Wendl | arXiv, Published in 2010, 153 pages
32. Neutral and Non-Euclidean Geometries
    David C. Royster | UNC Charlotte, Published in 2000, 145 pages
33. Mathematical Recreations and Essays
    W. W. Rouse Ball | Macmillan, Published in 1914, 506 pages
34. An Introduction to High Dimensional Knots
    Eiji Ogasa | arXiv, Published in 2013, 92 pages
35. A Short Course on Approximation Theory
    N. L. Carothers | Bowling Green State University, Published in 2009, 159 pages
36. An Introduction to Tensors for Students of Physics and Engineering
    Joseph C. Kolecki | Glenn Research Center, Published in 2002, 29 pages
37. Analytical Geometry for Beginners
    Alfred Baker | W. J. Gage, Published in 1905, 234 pages
38. Elliptic Functions and Elliptic Curves
    Jan Nekovar | Institut de Mathematiques de Jussieu, Published in 2004, 175 pages
39. A Review of Algebra
    Romeyn Henry Rivenburg | American Book Company, Published in 1914, 80 pages
40. A First Course in Ordinary Differential Equations
    Norbert Euler | Bookboon, Published in 2015, 232 pages
41. Lectures on the Algebraic Theory of Fields
    K.G. Ramanathan | Tata Institute of Fundamental Research, Published in 1956, 228 pages
42. A Problem Text in Advanced Calculus
    John M. Erdman | Portland State University, Published in 2008, 377 pages
43. Notes on Discrete Mathematics
    Miguel A. Lerma | , Published in 2005, 154 pages
44. Algebraic and Geometric Topology
    Andrew Ranicki, Norman Levitt, Frank Quinn | Springer, Published in 1985, 436 pages
45. A Computational Introduction to Number Theory and Algebra
    Victor Shoup | Cambridge University Press, Published in 2005, 534 pages
46. A Gentle Introduction to the Art of Mathematics
    Joseph Fields | Southern Connecticut State University, Published in 2009, 428 pages
47. Surfing on the ocean of numbers
    Henry Ibstedt | Erhus University Press, Published in 1997, 76 pages
48. Applied Analysis
    J. Hunter, B. Nachtergaele | World Scientific Publishing Company, Published in 2005, 439 pages
49. The Calculus of Functions of Several Variables
    Dan Sloughter | Furman University, Published in 2001, 260 pages
50. Encyclopedia of Dynamical Systems
    D. Anosov, at al. | Scholarpedia, Published in 2009
51. Ten Chapters of the Algebraical Art
    Peter J. Cameron | Queen Mary, University of London, Published in 2007, 108 pages
52. A Second Semester of Linear Algebra
    S. E. Payne | University of Colorado Denver, Published in 2009, 236 pages
53. Everything you wanted to know about Data Analysis and Fitting
    Peter Young | arXiv, Published in 2012, 55 pages
54. The Principles Of Mathematics
    Bertrand Russell | W. W. Norton & Company, , 579 pages
55. Differential Equations From The Algebraic Standpoint
    Joseph Fels Ritt | The American Mathematical Society, Published in 1932, 201 pages
56. Partial Differential Equations for Finance
    Robert V. Kohn | New York University, Published in 2003, 121 pages
57. Theory of Functions of a Real Variable
    Shlomo Sternberg | , Published in 2005, 393 pages
58. Dynamics, Ergodic Theory, and Geometry
    Boris Hasselblatt | Cambridge University Press, Published in 2007, 334 pages
59. Games of No Chance 3
    Michael H. Albert, Richard J. Nowakowski | Cambridge University Press, Published in 2009, 586 pages
60. A Gentle Introduction to Category Theory: the calculational approach
    Maarten M. Fokkinga | University of Twente, Published in 1994, 80 pages
61. Introduction to Analysis
    Ray Mayer | Reed College, Published in 2006, 291 pages
62. Special Set Linear Algebra and Special Set Fuzzy Linear Algebra
    W. B. V. Kandasamy, F. Smarandache, K. Ilanthenral | CuArt, Published in 2009, 469 pages
63. Groupoids and Smarandache Groupoids
    W. B. Vasantha Kandasamy | American Research Press, Published in 2002, 115 pages
64. Proof, Sets, and Logic
    M. Randall Holmes | Boise State University, Published in 2009, 207 pages
65. The Elements of Non-Euclidean Plane Geometry and Trigonometry
    Horatio Scott Carslaw | Longmans, Green and co., Published in 1916, 202 pages
66. Lectures on Topics In One-Parameter Bifurcation Problems
    P. Rabier | Tata Institute of Fundamental Research, Published in 1985, 238 pages
67. Introduction to the Theory of Statistics
    A. M. Mood, F. A. Graybill, D. C. Boes | McGraw-Hill, Published in 1974, 577 pages
68. The Geometry and Topology of Three-Manifolds
    William P Thurston | Mathematical Sciences Research Institute, Published in 2002, 502 pages
69. Riemannian Geometry
    Ilkka Holopainen, Tuomas Sahlsten | , Published in 2013, 102 pages
70. Funny Little Calculus Text
    Robert Ghrist | University of Pennsylvania, Published in 2012, 46 pages
71. The Algebraic Theory of Modular Systems
    Francis Sowerby Macaulay | Cambridge University Press, Published in 1916, 140 pages
72. Lectures on Meromorphic Functions
    W.K. Hayman | Tata Institue of Fundamental Research, Published in 1959, 119 pages
73. Stochastic Processes
    Leif Mejlbro | BookBoon, Published in 2012, 263 pages
74. Curves and Surfaces in Geometric Modeling: Theory and Algorithms
    Jean Gallier | Morgan Kaufmann, Published in 1999, 502 pages
75. Aesthetics for the Working Mathematician
    Jonathan M. Borwein | DocServer, Published in 2001, 22 pages
76. Abelian Varieties
    J. S. Milne | , Published in 2008, 172 pages
77. Theory of Probability: A Historical Essay
    Oscar Sheynin | arXiv.org, Published in 2017, 316 pages
78. A First Course in Linear Algebra
    Ken Kuttler | Lyryx, Published in 2017, 608 pages
79. Categories, Types, and Structures
    Andrea Asperti, Giuseppe Longo | MIT Press, Published in 1991, 300 pages
80. Introduction to Vectors and Tensors Volume 2: Vector and Tensor Analysis
    Ray M. Bowen, C.-C. Wang | , Published in 2008, 246 pages
81. Calculus and Linear Algebra. Vol. 1
    Wilfred Kaplan, Donald J. Lewis | University of Michigan Library, Published in 2007, 712 pages
82. Higher Algebra
    Jacob Lurie | Harvard University, Published in 2017, 1166 pages
83. Differential Geometry: A Geometric Introduction
    David W. Henderson | Project Euclid, Published in 2013, 250 pages
84. Differential Geometry of Indefinite Complex Submanifolds in Indefinite Complex Space Forms
    Alfonso Romero, Young Jin Suh | , Published in 2004, 60 pages
85. Set Linear Algebra and Set Fuzzy Linear Algebra
    W. B. V. Kandasamy, F. Smarandache, K. Ilanthenral | InfoLearnQuest, Published in 2008, 345 pages
86. Lectures on Logarithmic Algebraic Geometry
    Arthur Ogus | University of California, Berkeley, Published in 2006, 255 pages
87. An Introductory Course in Elementary Number Theory
    Wissam Raji | The Saylor Foundation, Published in 2013, 171 pages
88. Lectures On Some Fixed Point Theorems Of Functional Analysis
    F.F. Bonsall | Tata Institute Of Fundamental Research, Published in 1962, 147 pages
89. Category Theory Lecture Notes
    Daniele Turi | University of Edinburgh, Published in 2001, 61 pages
90. First Steps in Numerical Analysis
    R. Hosking, S. Joe, D. Joyce, and J. Turner | , Published in 1998, 338 pages
91. Symmetry Groups and Their Applications
    Willard Miller | Academic Press, Published in 1972
92. Four-manifolds, Geometries and Knots
    Jonathan Hillman | arXiv, Published in 2009, 396 pages
93. Introduction to Probability
    Leif Mejlbro | BookBoon, Published in 2009, 61 pages
94. Algebraic Number Theory
    J.S. Milne | , Published in 2008, 163 pages
95. Natural Product Xn on matrices
    W. B. Vasantha Kandasamy, Florentin Smarandache | arXiv, Published in 2012, 342 pages
96. A Philosophical Essay on Probabilities
    Pierre Simon Laplace | Chapman & Hall, Published in 1902, 234 pages
97. Encyclopedia of Mathematics
    Michiel Hazewinkel | Kluwer Academic Publishers, Published in 2002, 1422 pages
98. A Course of Modern Analysis
    E. T. Whittaker, G. N. Watson | Cambridge University Press, Published in 1920, 608 pages
99. Advanced Calculus
    Lynn H. Loomis, Shlomo Sternberg | Jones and Bartlett Publishers, Published in 1989, 592 pages
100. Notes on the Theory of Algebraic Numbers
     Steve Wright | arXiv, Published in 2015, 127 pages
101. A Course in Riemannian Geometry
     David R. Wilkins | Trinity College, Dublin, Published in 2005, 72 pages
102. Functional and Structured Tensor Analysis for Engineers
     R. M. Brannon | The University of Utah, Published in 2003, 323 pages
103. Lectures notes on compact Riemann surfaces
     Bertrand Eynard | arXiv.org, Published in 2018, 119 pages
104. Linear Algebra
     Paul Dawkins | Lamar University, Published in 2011, 331 pages
105. Tunneling Through the Math Barrier
     William J. Meese | arXiv.org, Published in 2018, 187 pages
106. Tensor Trigonometry
     A.S. Ninul | FIZMATLIT, Published in 2021, 320 pages
107. Determinants and Matrices
     R. Kochendörfer | Teubner, Published in 1961
108. Mathematics in the Age of the Turing Machine
     Thomas Hales | arXiv, Published in 2013, 45 pages
109. Advanced Stochastic Processes
     Jan A. Van Casteren | Bookboon, Published in 2013, 404 pages
110. Transformations of Surfaces
     Luther Pfahler Eisenhart | Princeton University Press, Published in 1923, 371 pages
111. Algebra for Beginners
     James Loudon | Copp, Clark & Co, Published in 1876, 172 pages
112. Fourier Series and Systems of Differential Equations and Eigenvalue Problems
     Leif Mejlbro | BookBoon, Published in 2007, 125 pages
113. Notes on Categories and Groupoids
     P. J. Higgins | Van Nostrand Reinhold, Published in 1971, 195 pages
114. Metric and Topological Spaces
     T. W. Körner | University of Cambridge, Published in 2014, 109 pages
115. The Smarandache Function
     C. Dumitrescu, V. Seleacu | Erhus University Press, Published in 1996, 137 pages
116. Mathematical Essays and Recreations
     Hermann Schubert | The Open Court Publishing, Published in 1898, 159 pages
117. Basic Arithmetic Student Workbook
     Donna Gaudet, Amy Volpe, Jenifer Bohart | Scottsdale Community College, Published in 2013, 244 pages
118. Smooth Numbers: Computational Number Theory and Beyond
     Andrew Granville | Universite de Montreal, Published in 2008, 58 pages
119. Algebraic Groups, Lie Groups, and their Arithmetic Subgroups
     J. S. Milne | , Published in 2010, 383 pages
120. Category Theory for Scientists
     David I. Spivak | arXiv, Published in 2013, 261 pages
121. Handbook of Engineering Mathematics
     Walter E. Wynne, William Spraragen | Van Nostrand, Published in 1916, 246 pages
122. Lectures on Geodesics in Riemannian Geometry
     M. Berger | Tata Institute of Fundamental Research, Published in 1965, 317 pages
123. Algebraic Problems and Exercises for High School
     I. Goian, R. Grigor, V. Marin, F. Smarandache | The Educational Publisher, Published in 2015, 146 pages
124. An Introduction to Contemporary Mathematics
     John Hutchinson | Australian National University, Published in 2010, 295 pages
125. The Theory of Matrices
     C.C. MacDuffee | Chelsea, Published in 1956, 110 pages
126. Advanced Algebra
     Arthur Schultze | The Macmillan Company, Published in 1906, 588 pages
127. Comments and topics on Smarandache notions and problems
     Kenichiro Kashihara | Erhus University Press, Published in 1996, 50 pages
128. Elementary Trigonometry
     W. E. Paterson | Clarendon Press, Published in 1911, 213 pages
129. Probability Theory and Stochastic Processes with Applications
     Oliver Knill | Overseas Press, Published in 2009, 382 pages
130. Fredholm Operators and Spectral Flow
     Nils Waterstraat | arXiv, Published in 2016, 61 pages
131. Pluckings from the tree of Smarandache: Sequences and functions
     Charles Ashbacher | American Research Press, Published in 1998, 80 pages
132. A Scrap-Book of Elementary Mathematics
     William F. White | The Open Court Publishing Company, Published in 1908, 234 pages
133. Origami and Geometric Constructions
     Robert J. Lang | , Published in 2003, 55 pages
134. Elliptic Integrals
     Harris Hancock | J. Wiley, Published in 1917, 118 pages
135. Non-Euclidean Geometry
     Henry Manning | Ginn and Company, Published in 1901, 93 pages
136. Lectures on Lie Groups and Representations of Locally Compact Groups
     F. Bruhat | Tata Institute of Fundamental Research, Published in 1958, 140 pages
137. Hopf Algebras in General and in Combinatorial Physics: a practical introduction
     G.H.E. Duchamp, et al. | arXiv, Published in 2008, 40 pages
138. Plane and Spherical Trigonometry
     Elmer A. Lyman, Edwin C. Goddard | Allyn and Bacon, Published in 1900, 157 pages
139. 18 Lectures on K-Theory
     Ioannis P. Zois | arXiv, Published in 2010, 137 pages
140. The World of Mathematics
     Philipp Legner | Mathigon, Published in 2012
141. Lectures on Stochastic Analysis
     Thomas G. Kurtz | University of Wisconsin, Published in 2007, 119 pages
142. Numerical Methods with Applications
     Autar K Kaw, Egwu Eric Kalu | Lulu.com, Published in 2008, 728 pages
143. An Introduction to Determinants
     William Thomson | , Published in 1882, 122 pages
144. Matroid Decomposition
     Klaus Truemper | Leibniz, Published in 1998, 398 pages
145. A Mathematics Primer for Physics Graduate Students
     Andrew E. Blechman | , Published in 2007, 78 pages
146. Introduction to Algebraic Topology and Algebraic Geometry
     U. Bruzzo | , Published in 2008, 138 pages
147. Mathematical Computation
     Ian Craw | University of Aberdeen, Published in 2003, 156 pages
148. Lectures on Representation Theory and Invariant Theory
     William Crawley-Boevey | University of Leeds, Published in 1990, 77 pages
149. Temporal Networks
     Petter Holme, Jari Saramäki | arXiv, Published in 2011, 25 pages
150. Notes on the Atiyah-Singer Index Theorem
     Liviu I. Nicolaescu | University of Notre Dame, Published in 2005, 135 pages
151. Equivariant Stable Homotopy Theory
     G. Jr. Lewis, J. P. May, M. Steinberger, J. E. McClure | Springer, Published in 1986, 538 pages
152. Convex Geometric Analysis
     Keith Ball, Vitali Milman | Cambridge University Press, Published in 1998, 236 pages
153. Introduction to Topological Groups
     Dikran Dikranjan | UCM, Published in 2007, 69 pages
154. Partial Differential Equations
     Erich Miersemann | Leipzig University, Published in 2012, 205 pages
155. A Probability Course for the Actuaries
     Marcel B. Finan | Arkansas Tech University, Published in 2011, 517 pages
156. Introductory Statistics Notes
     Jamie DeCoster | University of Alabama, Published in 1998, 48 pages
157. Trigonometry for Beginners
     J. B. Lock | The MacMillan Company, Published in 1896, 236 pages
158. An Introduction to Modular Forms
     Henri Cohen | arXiv.org, Published in 2018, 58 pages
159. Trigonometry
     Michael Corral | mecmath.net, Published in 2009, 174 pages
160. Roots of a Compact Lie Group
     Kristopher Tapp | arXiv, Published in 2009, 39 pages
161. A Treatise on Probability
     John Maynard Keynes | Macmillan and co, Published in 1921, 561 pages
162. Differential and Integral Calculus
     C. E. Love, E. D. Rainville | The MacMillan Company, Published in 1916, 369 pages
163. Geometric Exercises in Paper Folding
     T. Sundara Row | The Open Court pub. co, Published in 1917, 176 pages
164. Existence, multiplicity, perturbation, and concentration results for a class of quasi-linear elliptic problems
     Marco Squassina | Electronic Journal of Differential Equations, Published in 2006, 213 pages
165. Mathematics for Computer Science
     Eric Lehman, F Thomson Leighton, Albert R Meyer | MIT, Published in 2010, 557 pages
166. Category Theory for the Sciences
     David I. Spivak | The MIT Press, Published in 2014, 496 pages
167. Higher Elementary Geometry
     Venugopal | , Published in 1958, 135 pages
168. Experimental Design and Analysis
     Howard J. Seltman | Carnegie Mellon University, Published in 2012, 428 pages
169. The Elements of the Theory of Algebraic Numbers
     Legh Wilber Reid | The Macmillan company, Published in 1910, 488 pages
170. Riemann Surfaces, Dynamics and Geometry
     Curtis McMullen | Harvard University, Published in 2020, 203 pages
171. Linear Algebra
     Jim Hefferon | Saint Michael's College, Published in 2017, 507 pages
172. A Cultural Paradox: Fun in Mathematics
     Jeff Zilahy | Feedbooks, Published in 2010, 75 pages
173. Blast Into Math!
     Julie Rowlett | BookBoon, Published in 2013, 215 pages
174. Metrics on the Phase Space and Non-Selfadjoint Pseudo-Differential Operators
     Nicolas Lerner | Birkhäuser, Published in 2009
175. Probability and Statistics: A Course for Physicists and Engineers
     Arak M. Mathai, Hans J. Haubold | De Gruyter Open, Published in 2017, 582 pages
176. CDBooK: Introduction to Vassiliev Knot invariants
     S.Chmutov, S.Duzhin, J.Mostovoy | Ohio State Universit, Published in 2009, 460 pages
177. An Episodic History of Mathematics
     Steven G. Krantz | Mathematical Association of America, Published in 2006, 483 pages
178. Dynamical Systems: Analytical and Computational Techniques
     Mahmut Reyhanoglu | InTech, Published in 2017, 272 pages
179. Operators on Hilbert Space
     John Erdos | King's College London, Published in 2004, 52 pages
180. Statistics: Methods and Applications
     Thomas Hill, Paul Lewicki | StatSoft, Inc., Published in 2005, 800 pages
181. Introduction to Tensor Calculus
     Kees Dullemond, Kasper Peeters | University of Heidelberg, Published in 2010, 53 pages
182. The Mathemagician and Pied Puzzler: A Collection in Tribute to Martin Gardner
     Martin Gardner, at al. | AK Peters, Published in 1999, 252 pages
183. An Introduction to Geometry
     Wong Yan Loi | National University of Singapore, Published in 2021, 145 pages
184. Analysis Tools with Applications
     Bruce K. Driver | Springer, Published in 2003, 790 pages
185. Lectures on Cauchy Problem
     Sigeru Mizohata | Tata Institute of Fundamental Research, Published in 1965, 191 pages
186. Essential Mathematics
     Franco Vivaldi | , Published in 2006, 74 pages
187. Axiom: The Scientific Computation System
     Richard D. Jenks, Robert S. Sutor | axiom-developer.org, Published in 2003, 1200 pages
188. Basics of Algebra and Analysis For Computer Science
     Jean Gallier | , Published in 2007, 254 pages
189. The Geometry and Topology of Braid Groups
     Jenny Wilson | University of Michigan, Published in 2018, 30 pages
190. Linear Algebra C-4: Quadratic equations in two or three variables
     Leif Mejlbro | BookBoon, Published in 2009, 74 pages
191. Programming for Computations - Python
     Svein Linge, Hans Petter Langtangen | Springer, Published in 2016, 232 pages
192. Differential Equations
     William Woolsey Johnson | J. Wiley, Published in 1906, 96 pages
193. Indian Mathematics
     G. R. Kaye | Thacker, Spink & Co., Published in 1915, 102 pages
194. Geometric Theorems and Arithmetic Functions
     Jozsef Sandor | American Research Press, Published in 2002, 55 pages
195. A Problem-Solving Approach to College Algebra
     Marcel B. Finan | Arkansas Tech University, Published in 2002, 92 pages
196. Endless Amusement
     | Lea and Blanchard, Published in 1847, 217 pages
197. Chance and Luck
     Richard A. Proctor | Longmans, Green, and Co., Published in 1887, 164 pages
198. Introduction to Statistical Thought
     Michael Lavine | , Published in 2008, 434 pages
199. Deformations of Algebras in Noncommutative Geometry
     Travis Schedler | arXiv, Published in 2015, 120 pages
200. Lectures on Optimization: Theory and Algorithms
     John Cea | Tata Institute of Fundamental Research, Published in 1978, 237 pages
201. Seeing Theory: A visual introduction to probability and statistics
     T. Devlin, J. Guo, D. Kunin, D. Xiang | Brown University, Published in 2018, 66 pages
202. The Essential Elementary and Intermediate Algebra
     Jon Blakely | JonBlakely.com, Published in 2016, 314 pages
203. Collections of Problems on Smarandache Notions
     Charles Ashbacher | Erhus University Press, Published in 1996, 75 pages
204. Riemannian Submanifolds: A Survey
     Bang-Yen Chen | arXiv, Published in 2013, 272 pages
205. Ordinary Differential Equations
     Wong Yan Loi | National University of Singapore, Published in 2013, 121 pages
206. Applied Nonparametric Regression
     Wolfgang Härdle | Cambridge University Press, Published in 1992, 433 pages
207. Mathematical Exercises for Home Work
     A.T. Richardson | Macmillan and co., Published in 1892, 364 pages
208. Business Mathematics: A Textbook
     Edward I. Edgerton, Wallace E. Bartholomew | The Ronald Press Co., Published in 1921, 331 pages
209. Orders of Infinity
     G. H. Hardy | Cambridge University Press, Published in 1910, 101 pages
210. Homeomorphisms in Analysis
     Casper Goffman, at al. | American Mathematical Society, Published in 1997, 216 pages
211. Probability and Statistics
     | UCLA, Published in 2012
212. Logic and Proof
     Lawrence C Paulson | University of Cambridge, Published in 2002, 79 pages
213. An Introduction to Hilbert Module Approach to Multivariable Operator Theory
     Jaydeb Sarkar | arXiv, Published in 2013, 52 pages
214. Lectures on Potential Theory
     M. Brelot | Tata Institute of Fundamental Research, Published in 1967, 158 pages
215. Languages and Machines
     C. D. H. Cooper | Macquarie University, Published in 2008
216. Real Numbers and Fascinating Fractions
     N. M. Beskin | , Published in 1986
217. Lectures on Integrable Probability
     Alexei Borodin, Vadim Gorin | arXiv, Published in 2012, 63 pages
218. Elementary Theory of Numbers
     Waclaw Sierpinski | ICM, Published in 1964, 516 pages
219. Complex Analytic and Differential Geometry
     Jean-Pierre Demailly | Universite de Grenoble, Published in 2007, 571 pages
220. Algorithms in Real Algebraic Geometry
     S. Basu, R. Pollack, M. Roy | Springer, Published in 2009, 672 pages
221. Math Made a Bit Easier: Basic Math Explained in Plain English
     Larry Zafran | CreateSpace, Published in 2009, 280 pages
222. The Matrix Cookbook
     Kaare Brandt Petersen, Michael Syskind Pedersen | , Published in 2008, 67 pages
223. Introduction to Representation Theory
     Fiona Murnaghan | University of Toronto, Published in 2010, 73 pages
224. Introduction to Real Analysis
     William F. Trench | Prentice Hall, Published in 2003, 583 pages
225. Foundations of Infinitesimal Calculus
     H. Jerome Keisler | University of Wisconsin, Published in 2011, 213 pages
226. Notes on Classical Groups
     Peter J. Cameron | Queen Mary and Westfield College, Published in 2000, 96 pages
227. Elementary Calculus
     Frederick S Woods, Frederick H Bailey | Ginn and Company, Published in 1922, 323 pages
228. Coordinate Geometry
     Henry B. Fine, Henry D. Thompson | The MacMillan Company, Published in 1911, 318 pages
229. The Geometry of Iterated Loop Spaces
     J. P. May | Springer, Published in 1972, 175 pages
230. Geometric Topology: Localization, Periodicity and Galois Symmetry
     Dennis Sullivan | Springer, Published in 2005, 296 pages
231. Topics in Discrete Mathematics
     A.F. Pixley | Harvey Mudd College, Published in 2010, 173 pages
232. Introduction to Algebraic Geometry
     Yuriy Drozd | , Published in 1999, 104 pages
233. Random Differential Equations in Scientific Computing
     Tobias Neckel, Florian Rupp | De Gruyter Open, Published in 2013, 650 pages
234. Introduction Probaility and Statistics
     Muhammad El-Taha | University of Southern Maine, Published in 2003, 147 pages
235. Introduction to Differential Topology, de Rham Theory and Morse Theory
     Michael Muger | Radboud University, Published in 2005, 80 pages
236. Reform Calculus
     Marcel B. Finan | Arkansas Tech University, Published in 2004, 253 pages
237. Complex Integration and Cauchy's Theorem
     G. N. Watson | Cambridge University Press, Published in 1914, 100 pages
238. Trends in Commutative Algebra
     Luchezar L. Avramov, at al. | Cambridge University Press, Published in 2005, 264 pages
239. An Infinitely Large Napkin
     Evan Chen | MIT, Published in 2016, 615 pages
240. Mathematical Biology
     Jeffrey R. Chasnov | The Hong Kong University of Science & Technology, Published in 2010, 115 pages
241. Variational Modelling: Energies, gradient flows, and large deviations
     Mark A. Peletier | arXiv, Published in 2014, 64 pages
242. Practical Trigonometry
     H. C. Playne | E. Arnold, Published in 1906, 188 pages
243. Computing of the Complex Variable Functions
     Solomon I. Khmelnik, Inna S. Doubson | MiC, Published in 2011, 46 pages
244. Introduction to Algebraic Geometry
     Sudhir R. Ghorpade | Indian Institute of Technology Bombay, Published in 2007, 20 pages
245. The Solution of the Pyramid Problem
     Robert Ballard | John Wiley & Sons Ltd., Published in 1882, 109 pages
246. The Homology of Iterated Loop Spaces
     F. R. Cohen, T. J. Lada, P. J. May | Springer, Published in 2009, 490 pages
247. Probability Theory
     Curtis T. McMullen | Harvard University, Published in 2011, 98 pages
248. Geometry of 2D Topological Field Theories
     Boris Dubrovin | arXiv, Published in 1994, 204 pages
249. Harmonic Analysis, the Trace Formula, and Shimura Varieties
     J. Arthur, D. Ellwood, R. Kottwitz | American Mathematical Society, Published in 2005, 706 pages
250. A Treatise on the Theory of Invariants
     Oliver E. Glenn | Project Gutenberg, Published in 2006, 221 pages
251. Algebraic and Geometric Methods in Enumerative Combinatorics
     Federico Ardila | arXiv, Published in 2014, 143 pages
252. Riemannian Geometry: Definitions, Pictures, and Results
     Adam Marsh | arXiv, Published in 2014, 69 pages
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