This book is one of the so many books available in the market that talks about increasing the size of the penis with just exercises. Everybody knows good blood flow is essential for maintaining a healthy penis. At the most, exercises can help the penis to grow by one to two inches and no more. Just follow simple exercises and do it regularly and you would get a healthy penis that would help in achieving your ultimate goal, and that is satisfying your girl. Personally, I would request you not fall for these cheap gimmicks.