Susan Nolen-Hoeksema, PhD, is professor of psychology at Yale University. She has received numerous awards for her research on depression, mood regulation, and gender, including the David Shakow Early Career Award from the American Psychological Association, and the Leadership Award from the Committee on Women of the American Psychological Association. Lori M. Hilt, PhD, is currently completing a clinical internship at the University of Wisconsin, Department of Psychiatry. Her research focuses on the development of psychopathology in early adolescence, and she has published studies on cognitive, interpersonal, and biological processes involved in depression and self-injurious behavior.

• Preface, About the Editors, Contributors, Section I: Assessment, Diagnosis, and Epidemiology, Section II: Related Conditions, Section III: Biological Factors, Section IV: Psychosocial Factors, Section V: Treatment of Adolescent Depression, Section VI: Prevention of Adolescent Depression, Index

Susan Nolen-Hoeksema, PhD, is professor of psychology at Yale University. She has received numerous awards for her research on depression, mood regulation, and gender, including the David Shakow Early Career Award from the American Psychological Association, and the Leadership Award from the Committee on Women of the American Psychological Association. Lori M. Hilt, PhD, is currently completing a clinical internship at the University of Wisconsin, Department of Psychiatry. Her research focuses on the development of psychopathology in early adolescence, and she has published studies on cognitive, interpersonal, and biological processes involved in depression and self-injurious behavior.

• Preface, About the Editors, Contributors, Section I: Assessment, Diagnosis, and Epidemiology, Section II: Related Conditions, Section III: Biological Factors, Section IV: Psychosocial Factors, Section V: Treatment of Adolescent Depression, Section VI: Prevention of Adolescent Depression, Index

Susan Nolen-Hoeksema, PhD, is professor of psychology at Yale University. She has received numerous awards for her research on depression, mood regulation, and gender, including the David Shakow Early Career Award from the American Psychological Association, and the Leadership Award from the Committee on Women of the American Psychological Association. Lori M. Hilt, PhD, is currently completing a clinical internship at the University of Wisconsin, Department of Psychiatry. Her research focuses on the development of psychopathology in early adolescence, and she has published studies on cognitive, interpersonal, and biological processes involved in depression and self-injurious behavior.

• Preface, About the Editors, Contributors, Section I: Assessment, Diagnosis, and Epidemiology, Section II: Related Conditions, Section III: Biological Factors, Section IV: Psychosocial Factors, Section V: Treatment of Adolescent Depression, Section VI: Prevention of Adolescent Depression, Index