Written by one of the foremost U.S. authorities on energy, it is a major work in the field, replete with enough insight to satisfy the scholar and sufficient concern with the drama and colorful personalities in the history of oil to capture the interest of the general public. Though lengthy, the book never drags in developing its themes: the relationship of oil to the rise of modern capitalism; the intertwining relations between oil, politics, and international power; and the relationship between oil and society in what Yergin calls today's age of "Hydrocarbon Man".[5]