In her book "Ex Libris: Confessions of a Common Reader," Anne Fadiman shares the whimsical story of Wally, a bookworm portrayed as a little vermicule with a playful red baseball cap. Unlike typical book lovers, Wally's affinity for literature goes beyond mere reading; he literally consumes books, turning the act of reading into something both humorous and fantastical. This character highlights the distinctive passions that people can have for literature.

Wally serves as a metaphor for the deep, sometimes obsessive, connection individuals can form with books. Fadiman's narrative explores the joy and intimacy of reading, showcasing how literature can become an integral part of one's identity. Through Wally's unique actions, Fadiman encourages readers to reflect on their own relationships with books and the enriching experiences they can bring into everyday life.