Algebraic Topology: Questions and Answers (2020 Edition‪)‬

If you have a question about Algebraic Topology this is the book with the answers. Algebraic Topology: Questions and Answers takes some of the best questions and answers asked on the mathoverflow.net website.
You can use this book to look up commonly asked questions, browse questions on a particular topic, compare answers to common topics, check out the original source and much more. This book has been designed to be very easy to use, with many internal links set up that makes browsing in many different ways possible.

Topics covered include: Homotopy Theory, Geometric Topology, Algebraic Geometry, Reference Request, Differential Geometry, Stable Homotopy, Category Theory, General Topology, Cohomology, K Theory Homology, Homology, Differential Topology, Vector Bundles, Group Theory, Homological Algebra, Characteristic Classes, Simplicial Stuff and many more.