Even if you're a book lover, there are books you are glad there are no need for any longer.
For instance, a very popular booklet was printed from the 1930s through the early 1960s that is, thankfully, only a curiosity now. It was published for African-American families who liked to go traveling, but who faced the continual problem of hotels, restaurants, and other businesses for "whites only."
Equally as sad is the fact that the publisher based this booklet on a similar publication that was available for Jewish travelers.
The Negro Motorist Green Book, 1949 edition, is available here in full text in PDF format.