Racism is America's original and most enduring sin, with well-known historic and contemporary markers: slavery, lynching, Jim Crow, redlining, mass incarceration, police brutality. Yet a resurgence of white racism in the twenty-first century, from white supremacist rallies in Charlottesville, Virginia, to the skyrocketing number of hate crimes being reported around the country, has also brought into sharp relief another uniquely American tradition: antiracism. In Anticracism, Alex Zamalin tells the powerful story of this political theory and practice. He examines the way in which the black antiracist tradition has strongly engaged questions of freedom, equality, justice, struggle, and political hope in dark times. Through a study of major figures, texts and political movements, he traces the history of antislavery abolition, black socialism, and the civil rights movement, leading all the way up to the contemporary Movement for Black Lives.