Ian McMahan has followed two simultaneous career paths. As a developmental psychologist, he has written in major academic journals about his research on children's achievement. He won the James McKeen Cattell Prize, awarded by the New York Academy of Sciences, and is now Professor Emeritus of Psychology at Brooklyn College, City University of New York. As an author, he has written fiction and nonfiction for both adults and children. His books range from children's mysteries to historical novels, and include Get it Done!, a guide to improving motivation and personal efficiency, and a history of Ancient Egypt, Secrets of the Pharaohs. His dual careers came together recently with the university-level textbook, Adolescence, published by Allyn & Bacon.