Carole Boston Weatherford, a New York Times best-selling author and poet, was named the 2019 Washington Post Children's Book Guild Nonfiction Award winner. Her numerous books for children include the Coretta Scott King Author Award winner Unspeakable: The Tulsa Race Massacre, illustrated by Floyd Cooper; the Caldecott Honor Books Moses: When Harriet Tubman Led Her People to Freedom, illustrated by Kadir Nelson, and Voice of Freedom: Fannie Lou Hamer, Spirit of the Civil Rights Movement, illustrated by Ekua Holmes, which was also a Robert F. Sibert Honor Book; and the critically acclaimed Schomburg: The Man Who Built a Library, illustrated by Eric Velasquez. Carole Boston Weatherford lives in North Carolina.

Michele Wood is an illustrator, painter, filmmaker, and designer with a master's in divinity from Christian Theological Seminary. She has won numerous awards for her illustration work, including a Coretta Scott King Illustrator Award, as well as a nomination for an NAACP Image Award. Box: Henry Brown Mails Himself to Freedom is her first book with Candlewick Press. She lives in Indianapolis, Indiana.