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Questions designed to get an overview of a specific subject or body of results or to understand the relations among similar definitions, techniques or concepts appearing in different sub-fields of mathematics. While such questions by their very nature sometimes cannot be made very narrow and focused, it can be helpful to keep in mind that the design of MathOverflow does not make it a good fit for questions that are too broad.

4 votes

A toolbox for algebraic topology

You might've (hopefully!) found the answer to your questions by now, but I just came across this post, and in case you're still interested, I find the book 'Algebraic Topology' by Allen Hatcher to be …