JESSICA STONE, PHD, is a licensed psychologist who has provided psychological services to children, teens, adults, families, and prospective parents since 1992. Dr. Stone specializes in Play Therapy, digital tools in therapy, and focuses on meeting the complex and specific needs of children. She is the co-creator of the Virtual Sandtray App.

CHARLES E. SCHAEFER, PHD, is Director Emeritus of Psychology at Fairleigh Dickinson in Teaneck, New Jersey. He is considered by many to be the "Father of Play Therapy" and has appeared on The Oprah Winfrey Show, The Today Show, and Good Morning America.