The Changing Men Collections (CMC) comprises the largest research collection of materials about the modern men’s movement in the United States and throughout the world. Over 400 vertical files document the development of the men’s movement during the last 25 years. Consisting of research materials on key issues affecting contemporary men, there is information on such topics as men’s consciousness raising, masculinity, initiation rites, men in therapy, men’s emotional healing, African American men, battered men, circumcision, anger management, ecomasculinity, teen fathers, relationships, shadow work, men’s supports networks, and the ManKind Project. The files also represent the work of a variety of diverse men’s groups from throughout the world, as well as conference proceedings from the American Men’s Studies Association, Chicago Men’s Gathering, National Conferences on Men & Masculinity, among others.