From the 494 B.C. plebeians’ march out of Rome to gain improved status, to Gandhi’s nonviolent campaigns in India, to the liberation of Poland and the Baltic nations, and the revolutions in North Africa, nonviolent struggles have played pivotal roles in world events for centuries. Sharp’s Dictionary of Power and Struggle is a groundbreaking reference work on this topic by the “godfather of nonviolent resistance.” In nearly 1,000 entries, the Dictionary defines those ideologies, political systems, strategies, methods, and concepts that form the core of nonviolent action as it has occurred throughout history and across the globe, providing much-needed clarification of language that is often mired in confusion. Entries discuss everything from militarization to censorship, guerrilla theater, pacifism, secret agents, and protest songs.