Highly recommend going to Amazon and getting "The Modern Gunsmith" by James Howe and "Gunsmithing" by Dunlap. Howe is out of print, but is easy to find. Both are excellent books for teaching basics. Also, I recommend going to Midway USA and getting "Building Your Gunsmithing Library". Every smithing book ever published in this country is cataloged there, with a copy of their table of contents and information on which books are best at what areas. Hope I could help.
"I'd rather die on my feet than to live on my knees." E. Zapata