Boober uses the Book of Strange Moods and Weird Feelings to determine that Wembley's life has no meaning.
Books, periodicals, stories, and other forms of text, oral or written, from the world of Fraggle Rock.
- The Art of Truly Seeing - Rare item found by Doc in "Wembley's Egg," a self-help book on becoming more observant.
- Book of Strange Moods and Weird Feelings - Tome belonging to Boober, used to diagnose Wembley's feelings in "Wembley's Egg"
- The Doozer Who Didn't - Story of a Doozer who didn't work or build and turned into a Fraggle, "Episode 208: All Work and All Play."
- The Five Little Fraggles - Story that Marjory tells to Philo and Gunge; referenced in "Home Is Where the Trash Is."
- The Fraggle Folio of Facts - Fraggle nonfiction volume that records the Fraggles' knowledge of the world; introduced in the Back to the Rock episode "The Merggle Moon Migration".
- The Adventures of Sir Hubris - Gorg novel dealing with the legendary Sir Hubris, valued by Junior Gorg, "The Great Radish Caper."
- Princess Gwenelot and the Blue Dragon - one of the "Elder Clan Adventures" book series, favored by Red Fraggle and also available at Outer Space libraries, "Red's Blue Dragon"