Tovah P. Klein, PhD, is Director of the Barnard College Center for Toddler Development, a psychology professor at Barnard College, Columbia University, and the author of How Toddlers Thrive: What Parents Can Do Today for Children Ages 2-5 to Plant the Seeds of Lifelong Success. Her works appear frequently in the media, including the New York Times, Washington Post, Huffington Post, Parents, Motherly, Business Insider, Popsugar, Purewow, and Slate. She has appeared on Good Morning America, CNN, MSNBC, the Today show, and NPR.