1. Relationship-Induced Self-Concept Change: Theoretical Perspectives and Methodological Approaches -- 2. You Complete Me: Antecedents and Moderators of Relationship-Induced Self-Concept Change -- 3. Influence of Self-Disclosure in the Acquaintance Process on Changes in People's Self-Concept, How People Feel about Themselves, and How People Feel about Others -- 4. Commitment Readiness: Timing, the Self, and Close Relationships -- 5. Attachment Security Enhancement Model: Bolstering Attachment Security through Close Relationships -- 6. Who in the World Am I? Self-Concept Clarity and Self-Change in Relationships -- 7. Self-Authenticity and the Michelangelo Phenomenon -- 8. The Role of Social Support in Promoting Self-Development -- 9. Relationship Dissolution and Self-Concept Change -- 10. The Importance of Self-Concept and Self-Expansion in Understanding Health and Behavior Change -- 11. Self-Expansion: Intergroup and Sociocultural Factors -- 12. Self-Concept Change at Work: Characteristics and Consequences of Workplace Self-Expansion -- 13. Summary and Future Directions: Trajectories of Romantic Relationships and Self-Concept Change.

This volume provides an overview of the theoretical and empirical work on relationship-induced self-concept change that has occurred over the last 10-15 years. The chapters in this volume discuss the foundations of relationship self-change, how and when it occurs, how it influences relationship decisions and behavior, and how it informs and modifies subsequent knowledge structures, all examined over the course of the relationship cycle (i.e., initiation, maintenance, and dissolution). Additionally, this volume identifies novel applications and extensions of the relationship self-change literature, including applications to health and behavior, intergroup relations, and the workplace. Among the topics discussed: Self-disclosure in the acquaintance process Commitment readiness Bolstering attachment security through close relationships Self-concept clarity and self-change The role of social support in promoting self-development Relationship dissolution and self-concept change Intergroup and sociocultural factors of self-expansion Self-concept change at work Measurement of relationship-induced self-concept change Interpersonal Relationships and the Self-Concept serves both as a comprehensive overview of the existing empirical research as well as a roadmap for future research on self-change, including a discussion of emerging theoretical frameworks. It will interest researchers focusing on romantic relationships, self and identity, and the intersection of self and relationships, spanning the disciplines of psychology, sociology, communication, and family studies.