“The Gay Metropolis”, by Charles Kaiser
In depth look at gay awareness and life through the various decades. Provides background for those historically impaired. At least, we should try not to repeat the mistakes of the past, but really the book shows a few dramatic victories as well. Some interesting background on New York Times and other media reporting, including Mike Wallace’s early reporting, of homosexuality — negative and relatively unsympathetic. The first chapter is available at the NYT book review archive.