Books by Nancy L. Segal

The Minnesota Study of Twins Reared Apart startled scientists by demonstrating that twins reared apart are as alike, across a number of personality traits and other measures, as those raised together, suggesting that genetic influence is pervasive. Segal offers an overview of the study's scientific contributions and effect on public consciousness.

A leading expert on twins delves into the stories behind her research to reveal the profound joys and real-life traumas of twelve remarkable sets of twins, triplets, and quadruplets. Segal unravels these stories with an eye for the challenges that life as a twin can pose to parents, friends, spouses, and the twins themselves.