Overground Railroad: The Green Book and the Roots of Black Travel in America (Young Reader's Edition)A young reader's edition of Candacy Taylor's acclaimed book about the history of the Green Book, the guide for Black travelers Overground Railroad chronicles the history of the Green Book, which was published from 1936 to 1966 and was the "Black travel guide to America." For years, it was dangerous for African Americans to travel in the United States. Because of segregation, Black travelers couldn't eat, sleep, or even get gas at most white owned