I've been on a firearms "history" kick lately.
I just finished Glock - The Rise of America's Gun by Paul Barrett. It was an interesting read that casts some light on the plastic pistol empire. I will say Mr. Barrett throws a few digs at gun rights groups, mainly the NRA, but also treats gun control groups with the same level of scrutiny. It's obviously written by a non-shooter even though Mr. Barrett has covered the firearms industry for a long time, he's still an outsider. It was at least entertaining to see what a motley group Gaston used to build his empire.
I'm about a third of the way through C.J. Chiver's The Gun, which is easily 4 times the length of Barrett's book. However, I find that Mr. Chiver has put much more time into the research and tells a more complete history of automatic firearms leading up to the AK style rifle, which is the book's main subject. This has been a really good read so far, covering repeating arms in the Civil War through WWII and beyond. He is also a lot more reserved with his opinions about firearms, although he makes one statement in the forward that would have me believe he's a shooter himself.
Both are good books, Glock is a light read while The Gun is a little more on the heavier side.