Hardly a week passes without some high-profile court case that features intellectual property at its center. But how did the belief that one could own an idea come about? And how did that belief change the way humankind lives and works?

William Rosen, author of Justinian's Flea, seeks to answer these questions and more with The Most Powerful Idea in the World. A lively and passionate study of the engineering and scientific breakthroughs that led to the steam engine, this book argues that the very notion of intellectual property drove not only the invention of the steam...