I decide to put the materials generated when I am reading here. It seems to be a huge challenge to use Google sites to do LaTeX but I succeeded somehow. I will put the PDF version of the notes below for reference.

Disclaimer: Since I am not an expert in the fields of the readings, I cannot promise the accuracy of materials I post here. Moreover, I (usually) do not retype what the author wrote in the book, so all materials should only work as complementary materials to the book.

Category Theory

We follow the book Category Theory in Context by Emily Riehl. Many recommend this book since there are a lot of well-described examples in the book. You can find the text at

The link to the table of contents of the posts is here (or the picture [cat] on the left).