You might not think about it, but without electricity, our lives would be colder, darker, and much harder work. This series takes readers (Ages 8-12) on a historical journey, examining how people coped in the past and how they developed ingenious ways to make life safer and less unpleasant. Each book features full-color cartoon-style illustrations and hilarious speech bubbles to heighten interest, making the series attractive even to reluctant readers.With this book as your guide, you'll discover the wonders of this essential source, exploring everything from how electricity works, to the ingenious ways that people have controlled and used it throughout the ages.