As public health problems such as HIV/AIDS, substance abuse, violence, and environmental toxins become an ever greater part of our national landscape, grassroots public health work has become all the more important. This updated and revised edition of a highly praised volume provides meaningful insights into the systems of inequality in the United States—such as race, class, and gender—that impact health. Updated versions of a number of the original chapters, as well as new chapters and appendixes, address areas such as using community organizing to impact on policy; using the arts in community building and organizing; online activism; and the role of cultural humility and systems change in building effective partnerships between local health departments and community residents.