https://en.wikipedia.org/wiki/Publishers_Weekly_list_of_bestselling_novels_in_the_United_States_in_the_1920s https://en.wikipedia.org/wiki/Publishers_Weekly_lis

https://en.wikipedia.org/wiki/Publishers_Weekly_list_of_bestselling_novels_in_the_United_States_in_the_1920s https://en.wikipedia.org/wiki/Publishers_Weekly_list_of_best... Sinclair Lewis has multiple titles listed - best-selling author of the 1920s - later a Nobel Prize winner in literature. I'm not familiar with a lot of those books, admittedly. But most books in the top 10 for those years are notable enough, that they have their own Wikipedia article. "All Quiet on the Western Front" and "Gentlemen Prefer Blondes" in particular are highly influential works. They've had movies etc. made and are surely familiar titles to the average American, even if they may not have read them.