During Michael Harrington's four decades as America's leading socialist thinker, writer and speaker, he contributed to every progressive movement. One of the first of his twenty books, The Other America, is credited with spurring the Great Society anti-poverty programs. From his organizing with the student and civil rights movements in the 50's and 60's, to his leadership of the Democratic Socialist Organizing Committee (DSOC) and the Democratic Socialists of America (DSA) in the 70's and 80's, he consistently urged socialists to reach beyond isolation and build coalitions with labor and progressive groups in day-to-day struggles. As DSOC and DSA's representative to the Socialist International, he earned the respect, and the ear, of socialist leaders throughout the world. His death in 1989 did nothing to silence his thundering denunciation of injustice, for his voice lives on through us.