It was an incredible accomplishment when the United States first put a person on the Moon - but without the incredible behind-the-scenes work of NASA mathematician Katherine Johnson, such a feat could not have been possible. Follow her remarkable journey from growing up in West Virginia, to becoming a teacher, to breaking barriers at NASA and receiving the Presidential Medal of Freedom in 2015.This new biography series from DK goes beyond the basic facts to tell the true life stories of history's most interesting people. Full-color photographs and hand-drawn illustrations complement thoughtfully written, age-appropriate text to create an engaging book children will enjoy reading. Definition boxes, information sidebars, maps, inspiring quotes, and other nonfiction text features add depth, and a handy reference section at the back makes this the one biography series every teacher and librarian will want to collect. Each book also includes an author's introduction letter, a glossary, and an index.