PESI live seminar update: Due to concerns with coronavirus (COVID-19) all live, in-person seminars through August 31st are being changed to digital format. Click here for more information about the status of live in-person seminars.  Click here for Online Learning Options.


Mary Hartzell, M.Ed., received her master's in early childhood education and psychology from UCLA, and is a child development specialist and parent educator.  She has taught children, parents, and teachers for more than thirty years and has been the director of a highly respected Reggio-inspired preschool in Santa Monica, California.  Her parent-education classes and CD series on parent-child relationships have improved the lives of children and their families for decades.