Mara Beller has written an exciting and very valuable portrait of physicists engaged in making a scientific revolution--the quantum revolution. Beller lets us see Niels Bohr and his colleagues as they worked to win general acceptance of the Copenhagen formulation of quantum physics through ongoing dialogues, in print, correspondence, and talks, with fellow scientists. She argues that Bohr et alia prevailed, not because their view is scientifically more robust but because they were more skillful in what amounts to public relations within the scientific community--they were more effective in selling their views. Beller recreates the controversies surrounding the development of quantum theory and the acceptance of the Copenhagen formulation as "the" established view in great detail. She supports her arguments with a mass of gracefully employed archival and published documentation, including some real gems--that one of Bohr's major papers was published with two pages reversed, and nobody noticed, for example. This book is a delight to read, and an important and absorbing book, for everyone interested in how scientists develop, advocate, debate, and come to accept a new theory. I have been skeptical about work in history and philosophy of science, but this book convinces me that the Science Wars are way off base--Beller clearly is knowledgeable about the physics, and about the scientific community too. Read this book especially if you are a scientist, and see if you don't recognize yourself and some of your colleages!