Wendy Mass, born April 22, 1967, is a celebrated author known for her extensive work in young adult novels and children's literature. Her novel, A Mango-Shaped Space, received critical acclaim, winning the American Library Association (ALA) Schneider Family Book Award for Middle School in 2004. Mass's literary portfolio is diverse, including titles such as 11 Birthdays, Every Soul a Star, and the adaptation of her novel Jeremy Fink and the Meaning of Life into a feature film in 2011.

Mass has penned over thirty novels for young readers, highlighting her versatility and creativity within the genre. Besides her notable works like the Twice Upon a Time fairy tale series, Heaven Looks a Lot Like the Mall, the Willow Falls, Space Taxi, and Candymakers series, she has also contributed to television, writing the storyline for an episode of Monk, titled "Mr. Monk Goes to the Theatre", which aired during the show's second season. Mass shares that, aside from writing, her hobbies include hiking and photography, though she humorously admits to a penchant for collecting candy bar wrappers and searching for buried treasure with her metal detector.

Residing with her family in New Jersey, Wendy Mass continues to inspire and entertain young readers with her imaginative storytelling and engaging narratives.