- Indivisible by Two
- 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. These moving stories remind us of how incompletely any theory explains real life--twin or not.
- Hardcover 2005 / Paperback 2007