What makes two? All sorts of things. A bicycle's wheels. A bluebird's wings. And twins, as you can plainly see, Are just as two as two can be. This brightly ill

Revised and updated in 2020 The creator of Twiniversity delivers an essential update to her must-have manual to having twins, now with expanded info on twin pre

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

Whether fraternal, identical, or just two peas in a pod, twins share an unmistakable connection that lasts a lifetime. Inspire the twins in your community to ce

Johanna Hurwitz invites readers into the world of the funny, lovable Kelly twins, who are truly two of a kind. Second-graders Arlene and Ilene Kelly are twins �