The first part is all about logic and it tells you everything you need to know. You have to approach it like reading a big academic paper though. It’s not like you’ll be flipping through the pages rapidly but it is definitely understandable. Can’t comment on later parts because I stopped reading. I might start again one day though. I quite liked it.

Not sure why the downvotes. But its not that math heavy, you just have to know basic proof techniques,set theory and a little bit of number theory. Something everyone can pick up in a month or two at most.