In this episode, Anjie chats with Michael Frank, a professor in the Psychology Department here at Stanford University. He is the David and Lucile Packard Professor of Human Biology and is the director of the Symbolic Systems Program. Mike studies language use and language learning, with a focus on early word learning. In this episode, they talk about his recent book on early language acquisition, Variability and Consistency in Early Language Learning: The Wordbank Project. Mike also shares how the research has informed his own parenting practices.