I think the best kind of material to begin with, which is not only easy, fast, and a little more interesting, are books that are actually laid out sort of like how Paul has done the PhotoReading, and Natural Brilliance books. Nonfiction books with roughly 170-250 pages, subtitles within the chapters, maybe some tidbits of facts on the side margins, and a few pictures here and there explaining the concepts. To this day, I've found that when a book is formatted this way, it's very easy to activate, and absorb the information in.
Books like this that I've had the experience of activating that are sort of formatted in this style are The Einstein Factor(very good book, I might add), The Gift of Dyslexia, the Mind Map Book, Excuse Me Your Life is Waiting:The Astonishing Power of Feelings, Exploring the World of Lucid Dreaming, The Mind's Eye(this one's a little more heavy, lengthy, and intellectual), and if you haven't even activated or PRed Natural Brilliance yet, I'd recommend that book also.
Those are just a few of my specific recommendations. 
I'd give more, but money is being collected right now, and I've run out of good stuff to read. 
Poor folks, I have..."Why do you have to go through them all in one day?!"
-youngprer
geocities.com/doc5587
