Alex Kozulin began his investigation of Vygotsky's theory at the Moscow Institute of Psychology and continued it in Boston and then Jerusalem. He is the author of Psychology in Utopia: Toward a Social History of Soviet Psychology (MIT Press, 1984), Vygotsky's Psychology: A Biography of Ideas, and a coeditor of Vygotsky's Educational Theory in Cultural Context.
Suzanne M. Miller is Senior Member of the Population Science Division of the Fox Chase Cancer Center. She lives in Princeton, New Jersey.
John Seely Brown is Former Chief Scientist, Xerox Corp and former director of its Palo AltoResearch Center (PARC), and co-author of The Social Life of Information.