A good Carbine book is "The War Baby" by Larry Ruth.
Another is "U.S. M1 Carbines, Wartime Production" by Craig Riesch.
A very good one that does both the M1 and the Carbine is "Complete Guide to the M1 Garand and the M1 Carbine, by Bruce N. Canfield.
Canfield writes a lot of articles on US military arms for the NRA American Rifleman.
All can be bought on Amazon and often on Ebay.