Darell Hammond is an American philanthropist, founder of the non-profit organization KaBOOM! that helps communities build playgrounds for children. Hammond also speaks at conferences and universities about his work and blogs on The Huffington Post. Hammond, who from the age of four enjoyed a happy childhood in a group home founded by Moose International, began building playgrounds in college, founding KaBOOM! with a friend in 1996. He has received multiple honors and awards for his work, including the President's Volunteer Service Award. In 2011, Hammond released his best-selling memoir, KaBOOM! How One Man Built a Movement to Save Play. He was listed in the Forbes 2011 list of the top 30 social entrepreneurs and was named as a "Health hero" by WebMD.