Berk has served as research editor for Young Children and consulting editor for Early Childhood Research Quarterly and the Journal of Cognitive Education and Psychology. She is a frequent contributor to edited volumes on early childhood development, having recently authored chapters on the importance of parenting, on make-believe play and self-regulation, and on the kindergarten child. She has also written the chapter on development for The Many Faces of Psychological Research in the Twenty-First Century (Society for the Teaching of Psychology), the chapter on social development for The Chicago Companion to the Child, the article on Vygotsky for the Encyclopedia of Cognitive Science, and the chapter on storytelling as a teaching strategy for Voices of Experience: Memorable Talks from the National Institute on the Teaching of Psychology (Association for Psychological Science). Berk's books include Private Speech: From Social Interaction to Self-Regulation, Scaffolding Children's Learning: Vygotsky and Early Childhood Education, and Landscapes of Development: An Anthology of Readings. In addition to Infants, Children, and Adolescents, she is author of the best-selling texts Child Development and Development Through the Lifespan, published by Allyn and Bacon. Her book for parents and teachers is Awakening Children's Minds: How Parents and Teachers Can Make a Difference.
Berk is active in work for children's causes. In addition to service in her home community, she is a member of the national board of directors of Jumpstart, a nonprofit organization that provides early literacy intervention to thousands of low-income preschoolers across the United States, using college and university students as interveners. Berk is a fellow of the American Psychological Association, Division, 7: Developmental Psychology.