Since the publication of "The Riddle of Amish Culture" in 1989 many changes have occurred within Amish society, from westward migrations and a greater familiarity with technology to the dramatic shift away from farming into small business which is transforming Amish culture. For this revised edition, Donald B. Kraybill has taken these recent changes into account, incorporating new demographic research and new interviews he has conducted among the Amish. In addition, he includes a new chapter describing Amish recreation and social gatherings, and he applies the concept of "social capital" to his interpretation of how the Amish have preserved their social networks and the solidarity of their community.