Award-winning author Laurence Pringle gives an accurate account of York's life - before, during, and after the expedition. Using quotations from the expedition's journals, he tells how York's skills, strength, and intelligence helped in the day-to-day challenges of the journey. Artists Cornelius Van Wright and Ying-Hwa Hu consulted with a Lewis and Clark expert to create thoroughly researched and stunning watercolor paintings of York's life.