Jan Kristal, M.A. has degrees in Child and Developmental Psychology. She worked with the Kaiser Permanente Temperament Program for  16 years as Program Coordinator and Temperament Counselor at three Kaiser medical facilities. Co-author of The Instructor's Manual for Temperament Based Parenting Classes , she conducts workshops for professionals across  the country, consults with schools and teachers, and provides individual temperament assessments and consultations. Jan's work in temperament has been featured on NBC's Dateline. She teaches classes in Child and Adolescent Development, Temperament and Child Behavior, and Lifespan Development, at Dominican University of California.  Her book, The Temperament Perspective: Working With Children's Behavior , is published by Brookes  Publishing Company. Jan and her husband have two daughters.