Who are your favorite authors of the 1920’s, which books, and why?

Post WWI society, economic boom, the Jazz Age, widespread use of the automobile, radio, a new optimism, a new cynicism, the new “morality” of the “Lost Generation” writers, rural migration to the cities, the new suburbia, stock market manipulation, social activism, the first modern depictions of the “plight of the American Negro,” the Harlem Renaissance, explorations in sexuality, new laws pertaining to sedition, prohibition, muckraking, and much more had an effect on literature. Which authors or books of this period hit home with you?