The New York Public Library has twenty-two issues of the Green Book digitized. The purpose of this book is explained in this image taken from the 1957 edition.
Writing in the age of Yelp from Dupont, the historic center of gay life in Washington, DC, I can have trouble fully imagining the difficulty that many gay men had in accessing gay spaces. Even in the second half of the twentieth century, when gay scenes were expanding in major metropolitan areas across North America and Western Europe and gay rights movements were attaining increased visibility, access to specific gay locales remained largely dependent on local knowledge. This presented a particular challenge for the novice gay traveler, who might have possessed a vague sense that Schöneberg was the “gayborhood” of Berlin or the Marais functioned similarly for Paris, but have no idea which were the best bars, saunas, and so-called darkrooms, let alone whom to call if they ran into trouble with the police.