This bold picture book tells the story of the peace symbol--designed in 1958 by a London activist protesting nuclear weapons--and how it inspired people all over the world. Depicting the symbol's travels from peace marches and liberation movements to the end of apartheid and the fall of the Berlin Wall, Three Lines in a Circle offers a message of inspiration to today's children and adults who are working to create social change. An author's note provides historical background and a time line of late twentieth-century peace movements.