I plan to make another nomination, but right now I'm trying to choose among several books.
I wanted to nominate
Never Done: A History of American Housework by Susan Strasser, but it's not available everywhere.
Books I'm considering that are available in all relevant countries are
In Dubious Battle by John Steinbeck
The Triangle Fire by Leon Stein
Strike! by Jeremy Bercher (this one is in KU right now)