Robert J. Sternberg is Professor of Human Development at Cornell University and Honorary Professor of Psychology at the University of Heidelberg, Germany. He formerly was IBM Professor of Psychology and Education at Yale. His BA is from Yale summa cum laude and his PhD is from Stanford. He also holds 13 honorary doctorates. He is a member of the National Academy of Education and the American Academy of Arts and Sciences. Sternberg has been cited over 150,000 times and is among the most frequently cited authors in psychology textbooks. He is the winner of the APS Williams James Award and the APS James McKeen Cattell Award and of the Grawemeyer Award in Psychology.

He is married to Karin Sternberg and has five children: Seth, Sara, Samuel, Brittany, and Melody. Elena Grigorenkois associate professor of child studies and psychology at Yale University and associate professor of psychology at Moscow State University. Grigorenko has published more than 200 peer-reviewed articles, book chapters, and books. She has received many professional awards, and her research has been funded by various federal and private organizations. Grigorenko has worked with children from around the world, including those living in Africa, Asia, Europe, and the Americas.