Ed Valentine has been a credited staff writer for Sesame Street from season 40 (2009) onward, first working on Abby's Flying Fairy School. He has since written both street stories and inserts, as well as segments of "Cookie's Crumby Pictures" (including "Furry Potter and the Goblet of Cookies)," character's tweets for Twitter, and interactive scripts for the Kinect Sesame Street TV game. With the rest of the Sesame writing staff, Valentine has shared three Daytime Emmys for Outstanding Writing in a Children's Series (2013-2015)
Valentine has also written song lyrics for his street stories, including "Paleontologist Calypso," "Think It Through," "Feelings Come and Feelings Go," "Grover Can Do It All," and "One Thing at a Time."
Valentine has written episodes of various animated series including My Little Pony: Friendship Is Magic, The Fairly Oddparents, Ultimate Spider-Man, Marvel's Avengers Assemble, Doc McStuffins, and Bubble Guppies. Outside of television, Valentine has written plays for the stage and worked in puppet theater.