What is fat activism and why is it important? To answer this question, Charlotte Cooper presents an expansive grassroots study that traces the forty-year history of international fat activism and grounds its actions in their proper historical and geographical contexts. She details fat activist methods, analyzes existing literature in the field, challenges long-held assumptions that uphold systemic fatphobia, and makes clear how crucial feminism and queer theory are to the lifeblood of the movement. She also considers fat activism’s proxy concerns, including body image, body positivity, the obesity epidemic, and fat stigma.  Combining rigorous scholarship with personal, accessible writing, Fat Activism: A Radical Social Movement is not only an invaluable contribution to the burgeoning field of fat studies, but also a vehicle for much-needed social change.