Book excerpt: There are approximately 73 million twins in the world today. Every year in Twinsbury, Ohio, over 6,000 twins gather to celebrate their twin-ness. Society's fascination with twins is as old as time, and our interest runs the gamut from psychological studies to the celebrity status of twins such as Mary Kate and Ashley Olsen.Twin Stories is a fascinating exploration of the extraordinary bond that twins share. The book focuses on the experience of being a twin, either fraternal or identical, and gives twins and non-twins a greater understanding of the special relationship two people have when they have shared the same womb.