Michael C. Reichert is the executive director of the Center for the Study of Boys’ and Girls’ Lives based in the Graduate School of Education, University of Pennsylvania. The author wishes to express appreciation for Richard Hawley’s contributions to the study on which this new project is based; his partnership, keen insights, and graceful writing were invaluable. He also thanks Brad Adams of the International Boys’ Schools Coalition and Hanyen Andrew Lee of the University of Pennsylvania for their help refining the reflective model employed in the project.