"Saving Your Sex Life: A Guide for Men with Prostate Cancer" by John P. Mulhall
"Managing Prostate Cancer: A Guide for Living Better" by Andrew J. Roth MD

Dr. Mulhall is my doctor and is one of the few doctors I've had during my PC experience that has been completely honest and also helpful. He tells it like it is, while my others doctors have given me bits and pieces of information.

The second book has lots of useful information, too, and it makes sense to me mentally but I don't yet feel all of it in my heart.