On Earth Day, people celebrate what makes Earth special. Follow Cookie Monster and his friends from Sesame Street as they learn to be kind to Earth, on Earth Day and every day! Learn who started Earth Day, why it's important, and the different ways people celebrate it, from having a parade to cleaning up a park. This fun series provides the perfect introduction to environmental awareness. From conserving energy and water or fighting litter and pollution to the history of Earth Day, each book offers simple ways to care for the earth, with fun asides and commentary from your friends on Sesame Street. Interior paper made with 30 percent recycled post-consumer waste fibers.