Lou Berger (b. August 21, 1950) began writing for Sesame Street in 1989, and became the head writer in 1997 before leaving the show in 2008. He also wrote the book Around the Corner on Sesame Street, served as supervising producer and occasional writer on The Wubbulous World of Dr. Seuss and helped develop Big Bag. Berger's other accomplishments include serving as head writer for Pinwheel on Nickelodeon, helping to launch Reading Rainbow, and co-creating Between the Lions. In 2008 he published the children's book The Elephant Wish.