Both the Warren Wright endowment of Northwestern Memorial Hospital and the Osterman Chair of Child Psychiatry at Children's Memorial Hospital provided essential support for my work on this book over the entire 3 years from conception to delivery. My husband, Richard Wendel, not only contributed a chapter from his expertise in family therapy but also cheerfully interrupted his own academic work whenever a screech from my adjacent study signaled a need for his assistance when I was frustrated with the computer or a contributor. Tina Coltri-Marshall, APPI Publications Coordinator, supported every step of the process with precision and grace, from instructions to authors to assuring receipt of the final version of each and every chapter. Organizing this book and tracking all of the processes were major challenges that could not have been accomplished without her. Senior Editor Ann Eng ably managed the process at APPI that starts with submission of final chapter manuscripts. From idea to final book in hand, Bob Hales and John McDuffie both encouraged and supported me—all toward the goal we share of the best possible book.