Phyllis Booth, M. A., is Clinical Director Emeritus of The Theraplay Institute in Chicago. She collaborated with Ann Jernberg in developing the Theraplay method for helping children and families with attachment, trauma and relationship problems. She is the primary author of the third edition of Theraplay: Helping Parents and Children Build Better Relationships Through Attachment-Based Play, Jossey-Bass, 2010. She received her training at the University of Chicago in Human Development and Clinical Psychology; at the Tavistock Centre, London, under John Bowlby and D. W. Winnicott; at the Anna Freud Centre, London; and at the Family Institute at Northwestern University, Evanston, IL. She has conducted workshops and training in the Theraplay method for working with children and families throughout the United States, Canada, England, Denmark, Finland, Norway, Sweden, and South Korea.