Lisa Rogers is the author of 16 Words, which received two starred reviews and was called "a fine introduction to a celebrated American poet" by the New York Times. She is an elementary school librarian and a former newspaper reporter and editor. Lisa holds a master's degree in Library and Information Science and is a member of SCBWI. She lives just outside of Boston with her family.

Il Sung Na is the author-illustrator of many books for children, including A Book of Sleep; Bird, Balloon, Bear; That's My Carrot, and A Book of Babies, all of which received at least one starred review. The New York Times has praised that Il Sung "brings fresh energy to the familiar." Originally from South Korea, Il Sung studied illustration at Kingston University in London, and now lives in Kansas City with his wife, where he spends time teaching illustration courses at the Kansas City Art Institute.