Mary Hartzell, M.Ed., is a child-development specialist and parent educator. She is the director of the renowned First Presbyterian Preschool of Santa Monica, California.
~~tag-text~~
“Dan Siegel and Mary Hartzell have quite deftly managed to translate highly complex neuroscientific and psychological matters into lay strategies for effective parenting.” —Marilyn B. Benoit, M.D. , former president, American Academy of Child & Adol... SEE MORE