Herz, Henry: - Henry Herz has authored many picture books including I Am Smoke and I Am Gravity. His children's short stories have been published in Highlights for Children, Ladybug Magazine, and innumerous anthologies. Henry also writes adult science fiction and fantasy short stories. He holds a BS in Engineering from Cornell, an MS in Engineering from George Washington University, and an MA in Political Science from Georgetown.

López, Mercè: - Merce` Lo´pez graduated from Llotja Art School in Barcelona and has illustrated for design, theater, and film as well as twenty children's books for Spanish and international book publishers. Her 2019 title Lion of the Sky: Haiku for All Seasons by Laura Purdie Salas received multiple starred reviews and was named a Center for Children's Books Gryphon Honor Book, an NCTE Notable Poetry Book, a Kirkus Best Picture Book, and a Parents Magazine Best Kids' Book, among other accolades.