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.
Oriol Vidal is an illustrator and storyboard artist living in Barcelona, Spain. Wendy Mass's Time Jumpers is the first early chapter book series he has illustrated.