"The Diabolo from A-Z" is a book on diabolo written by the designer of a range of Swiss diabolos. The book provides a structured approach to learning diabolo, starting with the absolute basics and progressing through dozens of tricks, up to the point of using three diabolos on a single string. The book is recommended for kids and adults and is 96 pages long, with a paperback cover. If you are interested in learning diabolo from the ground up, this book may be a helpful resource. It may be a good idea to review the contents of the book before purchasing it to make sure that it covers the specific topics that you are interested in learning about.