This book is essential while you are receiving the NAET treatments. It is clear and consise as to what you should not be eating, smelling or touching during your 25-hr avoidance period. It gives you a selection of food that you may choose from. It tells you the order of things that you'll be treated for, why, and what you can expect to gain. It will also describe some of the clearing affects you may experience during your avoidance period. My doctor requires you to read the first 32 pages before treatment. This way, my cooperation with his expertise is assured a positive result.