Seven Sketches in Compositionality is easily the best book to get started on Category Theory. Learning something becomes highly fun and enjoyable when the auth

Seven Sketches in Compositionality is easily the best book to get started on Category Theory. Learning something becomes highly fun and enjoyable when the authors/lecturers are deliberately trying to make it so. Most books on anything serves to document something and looks like accumulated notes that are an overt attempt to impress the authors' peers. There is no focus on actually teaching. This book is not like that. This book focuses entirely on teaching, tries deliberately so that you can learn. Some other books that I have come across in my life are: 1. Intro to Electrodynamics by Griffiths 2. High School Physics book by Halliday, Resnick, Walker. 3. ToC book by Sipser. You get the idea.