Colleen Kong-Savage is a full-time illustrator and graphic designer. When she first moved to New York City, Kong-Savage worked at an art supply store, where she spent half her paycheck on decorative papers. For this debut picture book, she spent countless hours researching the clothes, living conditions, and landscape of the Joseon Dynasty, and then finding the right paper for each item. The papers used in this book come from around the world, including Korea where traditional paper is handmade from mulberry bark. Kong-Savage lives in New York City. You can visit her online at kongsavage.com.

Helena Ku Rhee works at a movie studio by day and is a children's book writer by night. Born in South Korea, she grew up listening to mighty tales of the Turtle Ship and Admiral Yi Sunsin from her parents and grandparents. Helena loves the idea that since nobody is 100% certain about the origins of the Turtle Ship design, it could very well have been a small, quiet turtle who inspired the creation of one of the greatest battleships of all time. This is her picture book debut. She lives in Los Angeles, California, and you can find her online at helenakrhee.com.