Quarry Books has just published a new book. It is called "Collage Lab: Experiments, Investigations, and Exploratory Projects", authored by Bee Shay. I found it to be less expensive at
Amazon. There are 52 "labs" with instructions and supply lists for an incredible variety of basic and advanced methods. I thumbed through it at the book store and decided this is a must order! Lots of great pictures and demonstrations are included. There are so many options, that I am sure even the most advanced collage artist would learn something new. Check it out!