In this report on the period from July 2001 through June 2002, Carolyn Boyes-Watson examines the experiences and lessons of peacemaking circles at Roca, Inc. Roca is a grassroots, multicultural human development and community building organization serving people and communities in eastern Massachusetts. Peacemaking circles are integral to all that Roca does in its work with young people, families, communities, and staff. The report consists of four parts. Part I provides a description of the learning and training activities conducted by Roca, and a thorough overview of the many uses of circles at Roca. Parts II, III, and IV provide a focused discussion of the impact of circles on three areas important to the mission and values of Roca: empowerment of young people; accountability among young people, Roca, and the wider community; and people coming together and building community through circles.