I loved this book and couldn't put it down.It helped me to understand the basics behind radio, radar, computers, nerves in the body, telegraphs and telephones to name but a few. These are things I've always wanted to understand.True at times it doesn't go into very detailed theory but this book is meant to be an overview of electricity and would be difficult to satisfy everyone in one book and it is in no way overly simple. After reading it it has given me the desire to learn even more and I believe it is a great introduction to the subject.