This is another really fine book of material for the average magician. Much is from 'Pallbeares Review', a magazine published by the author, and now considered one of the best sources for excellent material.
Many of the effects in this book are mathematical, and will fool most people,including magicians. The nice part is that you don't have to understand the mathematics, or why it works, to be able to do it. All that is required is attention to detail and good audience management. For that reason, the magician-to-be should be at least 12 years old, although some of the tricks could be done by someone who is younger.