Lois Barr, who holds a Master's Degree in Elementary Education, is an author, a teacher of tewnty-plus years, and a patented inventor of a water heated ice cream scoop. She has lived in New York, California, and Texas, and currently lives with her husband in Florida. When Numbers Met Letters is her debut picture book. Stephanie Laberis is a character designer and illustrator whose work has been nomiated for a Kate Greenaway Medal. Originally from New England, where she studied at Rhode Island School of Design, she now lives in the San Francisco Bay area. Stephanie also illustrated Julie Gonzalez's How Could a Bear Sleep Here?, which Kirkus Reviews called "a light spin on the 'be careful what you wish for' theme."