The Oxford Handbook of Close Relationships provides the best, most in-depth, and most comprehensive summary of the study of close relationships. The book is divided into eight sections: introductory comments, major theoretical approaches to relationships, attraction in relationships, models of relationship functioning and processes, daily relationship functioning, psychological and physical well-being in relationships, relationships across development and time, and concluding comments. The 37 chapters showcase the most important classic and contemporary theories, models, and empirical research that have been conducted across three dozen major topic areas within the field of close relationships. Chapter topics range in scope from evolutionary approaches to understanding relationships, the battle between the sexes, cultural influences on relationships, female sexuality, personality in relationships, intimate partner violence, relationships and health, social development, and adult relationship outcomes. Each chapter is structured around three themes: (1) the most important and foundational principles, ideas, and findings on each chapter topic, (2) the most important and novel emerging themes and issues relevant to each topic, and (3) the newest and most promising directions for future research. Current, comprehensive, and with heretofore unmatched breadth and depth, this volume will serve as a roadmap for future theory and research in the study of close relationship during the next decade.