Wendy Mass Wendy Mass is the author of award-winning books for young readers, including 11 Birthdays, Finally, 13 Gifts, The Last Present, and the Twice Upon a Time series; as well as A Mango-Shaped Space, Jeremy Fink and the Meaning of Life, Heaven Looks a Lot Like the Mall, Leap Day, Every Soul a Star, Space Taxi, and The Candymakers. She lives with her family in New Jersey. Read More Read Less