The title gives no suggestion of the exciting contents of this sweeping history of electrical energy, of the men who studied cosmic forces since earliest times. This mysterious energy, loose in the universe, has fascinated scientists for centuries, and this is the story of the men who learned to harness it, in many ways, from many sources. Most of what they have discovered up to the present is presented by a competent author in highly readable form. A good deal of biographical data on scientists is given and the book is dedicated to the wonder of energy itself. Boys and girls who today more than ever are fascinated by the subject will want this book for themselves, so that they may reconstruct the past of what is perhaps a new story of physical energy.