I thought the last reviewer was being harsh and figured if I got one or two really good ideas this book would be worth the cost. NOT! It really is like a 10 year old's book report. It seems like it is several decades old and had no useful information at all. By the time I returned it I was out $$$. It appears to be a self-published book with very low quality printing and binding. On some pages the type was severely skewed. The one positive review on this book must be from the author or a relative. My suggestion:pass on this one.