YoYoSkills.com - A Photographic Review created by Chris "Dr. Yo-Yo" Allen is an eighty page 7"x7" soft cover collector's book with over 100 of the most amazing and natural shots of some of the world's most beloved yo-yos. YoYoSkills.com and it's creator Chris Allen have grown into one of the most reputable yo-yo review sites in the entire world. When Dr. Yo-Yo gives a review, the world pays attention. This book is a must have for any yo-yo player's coffee table sitting right next to that bundle of string.