A groundbreaking study of twins brings together the latest scientific research and case studies to explore the complexities of human behavior and development as

Twins are nature's living laboratories. Through them we are able to uncover new information concerning the genetic and environmental factors affecting who we ar

"[A] stunning, deeply researched, and gracefully written social history." -- Leslie Schwalm, University of Iowa This study of women in antebellum Charleston, So

A leading expert on twins delves into the stories behind her research to reveal the profound joys and real-life traumas of 12 remarkable sets of twins, triplets