How to Solve it

Wherever I first read this in college it freaking blew my mind. I read it a few times. Had a profound impact on my life etc etc. I hadn't really thought about heuristics one might use for divining proofs. I used to try to just think as hard as I could and maybe I'd figure out the answer. But this guy has a whole methodology for it and it makes sense. I printed out the summary and put it on my wall behind my desk so that it would watch over me and the wisdom would flow out.