 It was then that Stone began his work in children's television, as a writer for "Captain Kangaroo" before moving on to "Sesame Street" as writer and executive producer.He also worked on several other Muppet projects before and during his time on "Sesame Street", and was the author of several children's books, particularly "", published by Random House as a Little Golden Book.Stone's earliest association with Jim Henson came in 1965, working on fairy tale projects with writer Tom Whedon, such as a proposed Snow White series.