m1a1fan,
Kalmbach, which publishes the FSM magazine has a line of books on scale modeling, and they have a book on painting figures. They also used to publish a book by Sheperd Paine titled "Building and Painting Scale Figures".
If you look on the home page of this website and look under "Our Products" you can probably find the Kalmbach books there.
For uniform guides, Osprey has a huge line of books that shows uniforms, equipment, etc. from all eras and almost every war.
http://www.ospreypublishing.com/
I hope this helps a little,
-Dave