Hidden Figures: The American Dream and the Untold Story of the Black Women Mathematicians Who Helped Win the Space Race

by Margot Lee Shetterly

In three years at Langley, Dorothy Vaughan had proven to be more than equal to the job, handing off error-free work to Marge Hannah and Blanche Sponsler and managing the constant deadlines with ease, garnering “excellent” ratings from her bosses.