About the Author

Stanley I. Greenspan, M.D., author of the widely used and praised books The Challenging Child and (with Serena Wieder, Ph.D.) Engaging Autism, is Clinical Professor of Psychiatry and Pediatrics at George Washington University Medical School and lives in Bethesda, Maryland. Stuart G. Shanker, D.Phil., is Professor of Philosophy and Professor of Psychology at York University, in Toronto. At the forefront of research into ape and child language, his acclaimed books include Apes, Language and the Human Mind (with Sue Savage-Rumbaugh and Talbot Taylor) and Wittgenstein's Remarks on the Foundations of AI . Dr. Shanker's critiques of genetic determinist theories of human development have been the subject of television specials, including "The Today Show," "Discovery," and "The Pamela Wallin Show."