Just learned about the site storybundle.com. Currently, one of the two bundles they have is on game culture
This specially picked set of 8 fascinating game culture & history books once again features a multitude of great titles - including exclusive ebooks - for a fraction of their retail price.
Surviving the Game Industry: A Wasteland Guide (StoryBundle Exclusive!) by Matthew Wasteland
How to Talk About Videogames by Ian Bogost
Playing at the World by Jon Peterson
A Psychogeography of Games by Hannah Nicklin
Boss Fight Books: Spelunky by Derek Yu
GameMaker Language by Benjamin Anderson
You Want to Play Go? by Jonathan Hop
HG101 Presents: Taito Arcade Classics by Kurt Kalata
there's some good stuff in there. i've read Ian Bogost's "Platform Studies" book on the Atari 2600 and enjoyed it, and that 'making of Spelunky' by Derek Wu holds personal interest for me (since i think it's a brilliant platformer and he seems to know what he's doing).