A complete treatise, full of surprises and secrets never before revealed about the most popular, practical, and useful accessory among amateur and professional magicians: the fake thumb. The straightforward language in this work, as well as the 320 illustrations accompanying the text, allow the reader to learn the basic manipulations, the most used techniques, and more than fifty powerful and highly entertaining tricks in a short time. It also provides a complete review of the best magic tricks as well as a special section with the most eye-catching fake-thumb routines. The Great Henry, through the pages of this book, offers us his best secrets, so we can trick and entertain our friends with the routines described herein.