Vickie Hallmark has a self-published book out on Blurb.com, called Copper On, Copper Off. The preview pages on blurb show full color pictures and the book is an affordable $16.95!
Many projects shown are for adding copper electroforming to glass beads, but of course the same principles apply to other ways of working.
She generously has posted some of the information on her blog, so you can get a feel for the process and her instructional style.
Her book on blurb: http://www.blurb.com/bookstore
Her site, the electroforming tutorial: http://www.vickiehallmark.com/EformTutorial1.html