Ross W. Greene, Ph.D., is the New York Times bestselling author of the influential books The Explosive Child, Lost at School, Lost and Found, and Raising Human Beings.

He is the originator of the model of care described in those books, now called Collaborative & Proactive Solutions (CPS). Dr. Greene was on the faculty at Harvard Medical School for over 20 years, and is now founding director of the non-profit Lives in the Balance, which provides a vast array of free, web-based resources on the CPS model. He has appeared in a wide range of media, including The Oprah Show, Good Morning America, The Morning Show, National Public Radio, Mother Jones magazine, The Atlantic, The Washington Post, The Chicago Tribune, and the Boston Globe. Dr. Greene lectures and consults widely throughout the world and lives in Portland, Maine.