This is an instruction book that has become almost like a bible to me. It has made me a better and more versatile rhythm player. I used to refer to it almost daily, but now I know and regularly use about 30 of the patterns that have become favourites.
This style of rhythm playing is suited to most genres and even contains some Rock strum patterns. Even if you go back as far as Bo Diddley, Motown, R&B there is something for you in this book.
I would like to recommend it to any guitar player who wants to progress beyond just strumming rhythm.