Actually Don Soderberg's book Corn snakes in Captivity has an even more detailed section on breeding than Kathy's, I have both books. He gives you step by step right down to a copy of the time line he uses at SMR(South Mountain Reptiles). Complete with pre breeding fast, 75 day burmation, when to begin warm up, when to start a heavy feeding schedule, usually when to start breeding based on this time line, when to expect sheds and laying(s) possible double clutching. As well as much much more.
I love both of these books!