Diana Block was a founding member of San Franciso Women Against Rape and the Prairie Fire Organizing Committee. She spent 13 years living underground with a political collective committed to supporting the Puerto Rican independence and Black liberation movements. She is the author of Arm the Spirit: A Story from Underground and Back, writes for left-wing journals, and is a member of the editorial collective of the Fire Inside newsletter, which has been giving voice to women and transgender prisoners since 1996. She lives in San Francisco.