This is a awesome book for kids out there that always ask the question "how does that work?" The book is broken up into sections from Getting Around, Powering the Home, to Digital Technology. Glossy pictures of the devices are layout into two page spreads with brief information about how it works and who invented it. The only con in this book is that the information is very brief but if kids are really interested they can father their resources so that is a pro. If kids like this book there are two previous in this series. ( )