It's ostensibly a book about AI, but when I first read it, summer after high school (or after freshman college year?), it blew my mind as a book that showed me

It's ostensibly a book about AI, but when I first read it, summer after high school (or after freshman college year?), it blew my mind as a book that showed me that computer science was science and mathematics and not just typing in programs and fiddling in BASIC on my TRS-80.