Jason Lefebvre was a preschool paraprofessional and children's librarian for many years before assuming his current position as Assistant Director of the Holyoke Public Library. He is the author of Too Much Glue and So Much Slime, and has written many other stories that he hopes to one day publish - in which nobody gets stuck to anything. He lives in Holyoke, MA, with his partner, Jeannine, and their pets.

Zac Retz is an art director and production designer in the entertainment industry who has worked for Disney, DreamWorks, Netflix, Illumination, and Sony. His movies include Spider-Man: Into the Spider-Verse, Raya and the Last Dragon, Encanto, Puss in Boots: The Last Wish, Scoob! and many more. Zac runs his own studio, Impetus Animation, and is the illustrator of Too Much Glue. He lives in Sedona, AZ.