An avid athlete, he enjoys basketball, running, hiking, and golf. He lives with his wife and three young daughters in Ann Arbor, Michigan.Lawrence J. Cohen, PH.D., is a licensed psychologist specializing in children’s play and play therapy. His book Playful Parenting is in its eleventh printing. His writing has also appeared in the Boston Globe, professional journals, and a host of national parenting magazines. He lives with his wife and two teenage children in Brookline, Massachusetts. Praise for The Art of Roughhousing…