Kathy Hirsh-Pasek is the Stanley and Debra Lefkowitz Faculty Fellow in the Department of Psychology at Temple University and a Senior Fellow at the Brookings Institution. She is the past president of the International Society for Infant Studies, served as the Associate Editor of "Child Development" and is on the governing counsel of the Society for Research in Child Development. In 2021 she was elected as a member of the National Academy of Education. She is on the advisory board for Nickelodeon, Vroom, the Boston Children's Museum, Disney Junior, and Jumpstart. Her research examines the development of early language and literacy as well as the role of play in learning. Roberta Michnick Golinkoff is the Unidel H. Rodney Sharp Chair and professor in the School of Education at the University of Delaware. She also holds joint appointments in the Departments of Psychological and Brain Sciences and Linguistics and Cognitive Science. She founded and is the director of the Child's Play, Learning, and Development Lab at the University of Delaware. Golinkoff is the Treasurer of the International Congress on Infant Studies and was an Associate Editor of "Child Development." She consults for numerous organizations (e.g., Jumpstart, the Delaware Children's Museums, and CHOICES for deaf children) and federal agencies. Her research focuses on language development, the benefits of play, and preschoolers' early spatial knowledge. In 2021 she was elected as a member of the National Academy of Education. As long-time collaborators, Hirsh-Pasek and Golinkoff have authored fourteen books, including "How Babies Talk: The Magic and Mystery of Language in the First Three Years," "Einstein Never Used Flash Cards: How Our Children Really Learn--and Why They Need to Play More and Memorize Less," and "Becoming Brilliant: What Science Tells Us about Raising Successful Children."