April 4, 2018, marked the fiftieth anniversary of Martin Luther King, Jr.’s death. This collection grapples with his enduring legacy. Though he is widely celebrated as a national hero—martyr to an inspiring dream about our country’s largest possibilities—many younger Americans now greet his name with suspicion, viewing him as an essentially conservative figure. These essays offer critical engagement in place of canonization, recovering—and scrutinizing—the profoundly radical nature of King’s political, moral, and religious thought.