Sales has spent her adult life working in philanthropic endeavors. After earning her B.A. in American history in 1971 from Manhattanville College, where she was a National Council of Churches Merit Scholar, Sales enrolled in graduate school at Princeton University. Between 1971 and 1976, she was a Danforth Scholar, and she advanced to Ph.D. candidacy in American history before leaving the university. Sales taught adult education in Boston for a year, and then worked as director of the Citizens' Complaint Center in Washington, D.C. From 1986 to 1988, she taught courses on the civil rights movement and African American women's history at the University of Maryland before becoming affiliated with the National Women's Studies Association. She served as director from 1989 to 1991 of Black Women's Voices and Images, an initiative to wed research to action on issues affecting black women. For the following three years she worked as director of Women of All Colors, coordinating a broad coalition of progressive organizations to work on issues affecting all women. In 1994, Sales entered the Episcopal Divinity School in Cambridge, Mass. She studied feminist, African American, and liberation theologies with an emphasis on race, class, and gender issues, and in 1998 received her M.Div. Her training as a seminarian prepared her to launch SpiritHouse in 2000, a nonprofit organization focused on community organizing and spiritually based community building. Sales has written several articles and has appeared as a commentator on several television programs. She lives in Washington, D.C.