Sisterhood Is Powerful (ISBN 0-394-70539-4), published in 1970, was one of the first widely available anthologies of early Second Wave radical feminist writings. The collection was edited by Robin Morgan, a feminist poet and founding member of New York Radical Women and W.I.T.C.H.
The compilation included classic feminist essays by activists such as Naomi Weisstein, Lucinda Cisler, Kate Millett, Eleanor Holmes Norton, Flo Kennedy, Frances Beale, Jo Freeman and Mary Daly, as well as historical documents including the N.O.W. Bill of Rights, excerpts from the SCUM Manifesto, the Redstockings Manifesto, and historical documents from W.I.T.C.H.