175560 asked for some on his journal. Here is an extended and modified version of my response:

Fiction

* Everything by Lois Mcmaster Bujold (except The Spirit Ring).
* Neal Stephenson - The Baroque Cycle is great if you like science and econ enough to read 800 pages of them at a pop.
* John Brunner - Shockwave Rider (proto-cyberpunk from the 70's)
* Elizabeth Moon - Remnant Population. Tired of young, energetic heroines and heroes? The protagonist in this Hugo-nominated novel is a grandmother.

Non-Fiction

* Richard Dawkins, The Selfish Gene, The Blind Watchmaker, The Extended Phenotype. These books are each very different. The first is the classic exposition of the gene-centered view of biology, the second a refutation of the classic argument that life is too complicated to have evolved, and the last an extension of the genes-eye view to subtle, less direct means by which genes control the world around them.
* Robert Wright - The Moral Animal (My favorite introductory Evolutionary Biology book, which, while explaining the field, uses Charles Darwin as an example subject of analysis, and does not shirk from discussing some of the moral implications of EvBio).
* Robert Wright - Non-Zero (About the idea that the main trend in human history is towards more positive-sum interactions. He takes the idea a bit too far, I think, but its still quite interesting).
* Matt Ridley The Origins of Virtue (about how morals evolved as a strategy to aid in positive sum cooperation).

And a nepotistic vote - if you haven't read my dad's Machinery of Freedom or Law's Order, they are both paridigm-shiftingly good: the former for convincing libertarians to become anarcho-capitalists, and the latter for helping libertarians realize that implementing our beliefs about rights into a legal system is extremely difficult and requires a lot of tradeoffs. Knowing what rights you want is far, far from enough. The same problems that plague governments when they attempt to put their policies into action (adverse selection, information costs, enforcement costs) are a feature of any legal system, even a libertarian one.

(I should disclaim that if you follow these links and buy things, I receive a tiny pittance, which I promise to blow in some joyous fashion.)