The Stories of John Cheever
This was my first foray into short stories (except for Stephen King) and I loved them. There are 61 stories in the order he wrote them. The earliest are set around WWI and the later stories are in the 70's. It was interesting to watch the changes in society as they occurred.
Most of the stories are filled with sadness and disappointment. Some are full of anger, crime, adultery, and all kinds of dubious behavior. Others deal with the randomness of fate.
I've become a fan of short stories with this one book. I'll never overlook the genre again.