Mark Selikowitz has over forty years' experience as a consultant developmental pediatrician. He was the cofounder and director of the Sydney Developmental Clinic, one of the largest child development units in the world. His books include All About ADD, ADHD: The Facts, and Down Syndrome: The Facts.
Daniel Henning is a director, producer, actor, and writer. His work has been seen on HBO, CBS, NBC, ABC, FOX, MTV, Comedy Central, and on stages throughout Southern California. He won a 2017 Telly Award for "Best Writer" for the film version of his play The Tragedy of JFK (as Told by Wm. Shakespeare).