Thats the Philosopher's Wool book, right? I would definitely recommend it, too. Of the Fair Isle books, I think these are the easiest, and they use worsted weight wool rather than the thin jumper weight, which is very thin. I made a sweater from Encore that I had already, and it came out fine. Washable and dryable, too. They're yarns are gorgeous, but it bothers me that he says they stretch about 2 inches after the first washing.