rarely told story of York, the enslaved man who was integral to the Lewis and Clark Expedition; African American author and illustrator team; author Hasan Davis is a well-known speaker, trainer and advocate for justice, education, and diversity initiatives; front and backmatter provide additional historical and cultural context to York's story; realistically portrays expeditions encounters with American Indian nations; historical expert and Shoshone consultant both contributed to project to ensure accuracy and sensitivity; Bonus video content via the Capstone 4D app augments the print experience and provides a safe way for kids to access video.