There is truly a lack of good, basic hardwire electronic "how-to" books. The market seems interested in this type of fun project compilation. This is another book in our extremely successful "Evil Genius" series. So far, each of the books has sold about $50,000 in less than 3 months. With this book and another (Scrap Electronics for the Evil Genius), we should have a nice "cluster" for our next catalog. The perfect addition to our "Evil Genius" series, this book details everything an electronics hobbyist would want to know about circuits and circuit design through 57 Lessons. Readers work through 5 distinct, useful projects to reinforce their learning.