Betty Bardige is a developmental psychologist and an early childhood author, advocate, foundation leader, and consultant. She focuses on language, literacy, and family engagement.

Megina Baker has been an early childhood educator in the United States and Sweden. She is now a researcher at Project Zero at the Harvard Graduate School of Education and part of the Early Childhood Education faculty at Boston University.

Ben Mardell has taught infants, toddlers, preschoolers, and kindergarteners. He is currently a principal investigator at Project Zero at the Harvard Graduate School of Education.