One of the most important African American leaders of the twentieth century and perhaps the most influential woman in the civil rights movement, Ella Baker (1903-1986) was an activist whose remarkable career spanned fifty years and touched thousands of lives. In this deeply researched biography, Barbara Ransby chronicles Baker's long and rich political career as an organizer, an intellectual, and a teacher, from her early experiences in depression-era Harlem to the civil rights movement of the 1950s and 1960s. Ransby paints a vivid picture of the African American fight for justice and its intersections with other progressive struggles worldwide across the twentieth century.