Phyllis York is the author of Toughlove and the coauthor of Toughlove Solutions. Her trouble with her own adolescent daughter sparked the Toughlove program, which she cofounded with the aim of giving parents the tools to change their own behavior so that they would no longer accept unacceptable behavior from their children.
Ted Wachtel is the author of Dreaming of a New Reality: How Restorative Practices Reduce Crime and Violence, Improve Relationships and Strengthen Civil Society and Restorative Justice Conferencing, Volume 1: Real Justice; and the coauthor of Toughlove. Wachtel is the founder and former president of the International Institute for Restorative Practices Graduate School in Pennsylvania.
David York was the coauthor, along with his wife Phyllis, of Toughlove Solutions. He died in 2007.