Maybe you're not familiar with Thomas Pynchon. He was a contemporary of the Beats, and my friend Charlie recommended his book, Slow Learner: Early Stories (which I actually had the economic wisdom to borrow from the library instead of buy from Amazon).
The book consists of a lengthy introduction by the author, and four of his short stories written early in his career. I'm only on page 6, but the intro is well-done and sets a nice stage for the stories to come.
On page 7, Pynchon says, "...and a book I believe is one of the great American novels, On the Road, by Jack Kerouac."
You go, Thomas!