Julia DeVillers is the author of How My Private, Personal Journal Became a Bestseller, which was adapted as a Disney Channel Original Movie. She is also the author of the Liberty Porter, First Daughter series and the coauthor of the Trading Faces series, written with her twin sister, Jennifer Roy.

Jennifer Roy is the author of the highly acclaimed Yellow Star, which won a Boston Globe-Horn Book Honor Award for Excellence in Children’s Literature and a Sydney Taylor Honor Award. It was a Jewish Book Awards Finalist, an ALA Notable Book, School Library Journal Best Book, and a NYPL Top Book for Reading and Sharing Books for the Teenager. She is also the author of Cordially Uninvited and Mindblind and the coauthor of the Trading Faces series, written with her twin sister, Julia DeVillers. Visit her at JenniferRoy.com.