Marilyn C. Agin, M.D. has a master's degree in Communication Disorders and was a practicing speech pathologist; she is board certified in Pediatrics and Rehabilitation. Dr. Agin is the Medical Director of the Early Intervention Program for New York City--the biggest program of its kind in the country. She also treats developmentally disabled children in a clinic setting and does private neurodevelopmental evaluations for children of all ages.
Lisa Geng is the mother of two "late talkers" and the founder and president of Children's Apraxia Network, a non-profit organization for children with neurologically-based language disorders. Lisa also founded CHERAB, a nonprofit foundation for parents and professionals working together to provide support and information for parents of children with speech challenges and/or apraxia.
Malcolm J. Nicholl is a former international journalist whose career included a two year position as Belfast bureau chief for the London Daily Mirror. He has written extensively on nutrition and education subjects.