[pwp]

"What Is The Name Of This Book?" by Raymond Smullyan is a great book if you like puzzles or want a playful way to improve your logic/reasoning skills. It does a really good job of incrementally building up to more complicated problems. It starts out with puzzles using basic if p then q style logic and moves all the way up to Gödel's Incompleteness Theorem in a way that is both accessible by and entertaining to someone as young as 10.

It took me about two weeks to a month to read and give each question due thought at a pretty leisurely pace, though I am sure most would take many much less time. (I had to stop to keep up on homework/study for tests for about a week of time.)

I don't know if I became a better programmer from it, but it is very much inline with the hacker spirit. You can get it probably from the library/inter-library loan (as I did initially), but you will probably fall in love with it and shell out the $10 to get the used copy.

Hope you enjoy, pwp