This textbook provides an introduction to elementary category theory, with the aim of making what can be a confusing and sometimes overwhelming subject more acc

Category theory provides a general conceptual framework that has proved fruitful in subjects as diverse as geometry, topology, theoretical computer science and

A short introduction ideal for students learning category theory for the first time.

An introduction to category theory as a rigorous, flexible, and coherent modeling language that can be used across the sciences. Category theory was invented in

An array of general ideas useful in a wide variety of fields. Starting from the foundations, this book illuminates the concepts of category, functor, natural tr