I bought this book for its section on electrical wiring. I had a problem with a couple of outlets at my house, and looked at several books that dealt specifically on home electrical wiring (ie Ortho, Black & Decker, Time-life and Better Homes) Pop Mech's "Home-How-To" book in my opinion far exceeded all other books on electrical wiring. This book went into more wiring configurations than the other books and explained them in simple step by step instructions with color diagrams to help. This book also explained alot about the different circuits (120v,240v,small appliance, lighting and individual) that are in your house and required by the NEC. There is even a small section on the process of getting a permit for adding extra circuits to your house. If your completely new to electricity the first few pages in the elecrtical section explains what amps, volts, and watts mean and even how to read your electric meter. So if you are new to home wiring and just want to know how to replace a switch or outlet then this book is for you, but if you are more knowleged and want to add a indoor or outdoor circuit line with a seperate circuit breaker in your main elec box, then this book is also for you. On a last note, I must again state that I am only rating and giving a 5 star rating on its electrical section, I have not had the chance or need to read into the other chapters.