Masters of Doom is my favorite, by far. Loved that book. Jacked, his follow up, was good, but not as good as Masters of Doom.
Ultimate History of Video Games is great too.
One that I recently read and it was really good was Of God and Games by Kevin Schut. It's got some stuff specific to religious folks but has a lot more just about the industry in general, video game violence (really balanced perspective I think), and it has good stuff on the positive power of video games.