This comprehensive, cross-disciplinary encyclopedia explores the developmental nature of social interactions and is designed for a broad range of readers in college, institutional, and public library settings. The lifespan perspective illuminates how relationships change throughout the course of human development from family interactions and friendships to dating and work relationships. In the process a diversity of topics are explored, such as aging experiences, divorce, family violence, gender roles, grandparenthood, HIV/AIDS and other sexually transmitted diseases, marriage and...