**Seven Sketches in Compositionality: An Invitation to Applied Category Theory**

by Brendan Fong, David I Spivak

**Publisher**: arXiv.org 2018**Number of pages**: 243

**Description**:

This book is an invitation to discover advanced topics in category theory through concrete, real-world examples. It aims to give a tour: a gentle, quick introduction to guide later exploration. The tour takes place over seven sketches, each pairing an evocative application, such as databases, electric circuits, or dynamical systems, with the exploration of a categorical structure, such as adjoint functors, enriched categories, or toposes.

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