The Monster Manual

About the Author

USA Today bestselling author Sarah Glenn Marsh has written numerous young adult, middle grade, and picture books. She is also the author of the How to Spot series at Running Press Kids. Her Irish heritage has inspired a love of fairy folklore and fantastical storytelling from a young age. She lives with her husband, daughter, four dogs, several fish, and two birds in Richmond, Virginia. Visit her online at www.sarahglennmarsh.com and let her know if you've ever spotted a monster in the wild!

Justine Wollman is an illustrator, designer, and founder of Bad Bean Studio, based in Los Angeles. She blends bold design with expressive illustration and a love of storytelling to create work that connects with audiences of all kinds. Her projects span everything from NFL and concert posters to national park collaborations and brand campaigns, all rooted in bold curiosity and creative problem-solving. Before launching her own studio, Justine graduated from the Tyler School of Art and Architecture at Temple University and collaborated with designer Jon Contino on projects for clients such as Disney and Hulu. Through Bad Bean Studio, she partners with teams, bands, and brands across the country, crafting visuals that balance grit and heart.