Green Boook - Nearly Complete SetOver the years, Green Books were used by drivers who wanted to avoid the segregation. Mass transit, job seekers relocating North during the Great Migration, newly drafted soldiers heading South to World War II army bases, traveling businessmen and vacationing families are some of those who relied on the Green Book Guides. Travelers could purchase copies at black-friendly businesses or order them by mail. The Schomburg Center for Research in Black Culture, New York Public Library, has a rare, nearly complete set: