Throughout the novels, Harry has given us a lot of info about how magic works (or how he perceives it to work). Is this info collected together somewhere in the game?
Yes & no. The physics stuff is, honestly, too much of a pain for us to hook meaningfully into the game. A different mage might look at things in terms of chi flows or geological forces or whatever mental construct works for them. Harry looks at stuff in terms of quasi-physics because, let's be honest, the guy's a modern era geek.
BUT, we do spend a lot of time talking about the nature of magic and have done our best to create spell system that's both simple and large enough to recreate the feeling of spell-use in the books.