Chandra Ghosh Ippen is a child psychologist and children's book author. She is Associate Director of the Child Trauma Research Program at the University of California, San Francisco and Director of Dissemination and Implementation for Child-Parent Psychotherapy. She is a member of the board of directors of Zero to Three and has spent the last 28 years conducting research, clinical work, and training in the area of childhood trauma. Her children's books include Once I Was Very Very Scared, You Weren't with Me, Holdin Pott, Mama's Waves and the Trinka and Sam disaster series, which has reached over 350,00 families across the world. As a boy, Erich was always interested in cartoons and character design. In his professional career, as a digital artist and technical director at Industrial Light and Magic, he has created visual effects for movies like Rango, Harry Potter, The Avengers and Star Wars, and many others. He is also a singer, songwriter, music producer aka Kingdom Krumb, and founding member of the San Francisco rock band District 8.