Can you recommend a good AR-15 book?

[G23Gen4TX]

I'm looking for a good AR book. Something the is intermediate to advanced. What do you recommand?

Also, your thoughts on the Colt A2 carbine with 16" barrel. I want to buy one. I like the old style carry handle and iron sights.

[Constructor]

Good book for what? Shooting? look at Magpul Dynamics videos.
Green eyes and Black rifles.

[G23Gen4TX]

Sorry, I meant a book for dissasembly and build up. To learn how an AR-15 works and what you car replace etc. Different models and some history.