Garrett Felber is an educator, writer, and organizer. They are the author of Those Who Know Don't Say: The Nation of Islam, the Black Freedom Movement, and the Carceral State and coauthor of The Portable Malcolm X Reader, with Manning Marable. Felber is a cofounder of the abolitionist collective Study and Struggle and is currently building a radical mobile library, the Free Society People's Library, in Portland, Oregon.

Robin D. G. Kelley is author or coeditor of numerous award-winning books including Freedom Dreams: The Black Radical Imagination, Thelonious Monk: The Life and Times of an American Original, and Race Rebels: Culture, Politics, and the Black Working Class, among others.