Sinkovec, Igor: - Igor Sinkovec was born in Slovenia in 1978. As a kid, he dreamt of becoming a truck driver--or failing that, an astronaut. As it turns out, he got stuck behind a drawing board -- so sometimes he draws semi trucks and space shuttles. Igor makes his living as an illustrator. Most of his work involves illustrating books for kids. He lives in Ljubljana, Slovenia.

Gunderson, Jessica: - Jessica Gunderson grew up in the small town of Washburn, North Dakota. She has a bachelor's degree from the University of North Dakota and an MFA in Creative Writing from Minnesota State University, Mankato. She has written more than one hundred books for young readers. Her book President Lincoln's Killer and the America He Left Behind won a 2018 Eureka! Nonfiction Children's Book Silver Award. She currently lives in Madison, Wisconsin.