This is an excellent book, so why have I only given it 2 stars. The reason is this the Book is very good but the slot car hobby is huge and it depends on what part of the hobby your interested in. I bouht the book hoping it would show me different ways of powering a two lane home circuit, although it does touch on this subject it dosnt really give a full explanation. I found it also a little light when discussing hand controllers , both these might be too big a subject to cover in a hand book, and the hand book could have been written to only give the reader an outline of what information is available, or it might be that the hobby is growing quicker and mote complex than anyone writing a book of any kind and especially when not writing about just one manufacturer. So the book is a good simple guide, giving a good outline on what is available and a little bit of in depth information on some subjects within slot car racing.