I often come up with ideas for books that would be better presented on a CD than in print. These tend to have lots of patterns or clip art. Who wants to scan all that from a book?
Each CD contains .pdf files that can be opened in Adobe Reader, with instructions for each technique, plus patterns and clip art presented as .jpg files. Everything is ready to print and use—so, with minimal supplies, you should be able to start making things as soon as the CD arrives!