This book would not have been possible were it not for the cooperation and hard work of many people. We are grateful to the authors who met deadlines and never complained, and to Marti Smith, who typed and coordinated the development of the manuscript. Her prior experience in managing similar projects made the process flow smoothly and efficiently. Geza Hrazdina, an outstanding graduate student, critiqued the chapters, offered valuable suggestions about how they could be strengthened, and assisted with the editing process. Danielle Hogston, the administrator of the Center for the Study of Youth Policy, generated the index and assumed responsibility for assembling the final document. More importantly, she and Marti Smith provided the moral support we needed to complete this task.