Ammi-Joan has been writing stories since early childhood. She and her sister would spend hours creating masterpieces of stapled paper and handwritten words, complete with pen-and-ink covers and boxed illustrations. Her favorite part of the process was creating a list for the back cover: “Don’t miss the other books in this series!” That list of eye-catching titles always seemed like way less work than (hand) writing out a whole book. But isn’t that just the way of things? Ammi lives with her husband and two daughters in the Boston area. Her first picture book, The Tiptoe Guide to Tracking Fairies, was published in 2009, and she has continued to write (and agent) books for children and young adults.

Marie Letourneau is a full-time illustrator and graphic artist, with a BA in Fine Arts from Hofstra University’s New College on Long Island. Marie illustrated Is a Worry Worrying You?, The Tiptoe Guide to Tracking Mermaids, and was the author and illustrator for The Mice of Bistrot des Sept Frères. She and her family live in New York.