I've literally just this minute finished reading "Masters Of Doom". A great look at the history and stories behind iD Software right up till the development of Doom 3. A phenomenal read from start to finish and I highly recommend it to anyone remotely interested in the company.
What I'm looking for now is something else. Ideally something focused on a specific company, or system, to get my teeth into.
I've alread read "Game Over", which I also loved, as well as Steven Pooles "Trigger Happy", so if anyone else can suggest something I'd be really grateful.