Lawrence J. Cohen, Ph.D., is a licensed psychologist specializing in children's play and play therapy. He is well-known for his book Playful Parenting, which focuses on the importance of play in a child's development and offers strategies to parents for engaging with their children playfully.

In addition to his private therapy practice, Dr. Cohen is a speaker and consultant to both public and independent schools. He also teaches parenting classes and classes for daycare teachers.

Dr. Cohen co-authored several books including Best Friends, Worst Enemies: Friendship, Popularity and Social Cruelty in the Lives of Boys and Girls and Mom, They're Teasing Me: Helping Children Solve Social Problems with Michael Thompson and Catherine O'Neill Grace.

His contributions to parenting literature include a regular column in Nick Jr. Magazine, which won the 2003 Golden Lamp award from Education Press. He also provides insights by answering parents' questions online on NickJr.com.