Via the magic of Google Books, from this issue of Life magazine (which was half devoted to war and half to domestic diversions), two classic book ads.
The following two images can be tapped to become ginormous (special for iPad Retina screens!):
(That bar code is likely an artifact from later archiving of the magazine, not contemporaneous to 1939!)
In 1939, I guess they didn’t realize how much torture The Grapes Of Wrath would be to high school students in English class.
They were more literate then and expected more from kids.