Winner of the Hugo Award for Best All-Time Series in 1966, Isaac Asimov's Foundation series has grown from its many short stories in various serial publications into a solid and complete whole, with adaptations and prequels, and side series as well. Let's take a spoiler heavy, thoughtful and fan approach to this alternate future of humanity. Caveat: All the Foundation novels are listed in the Reading list, but there may be spoilers about the Robot and Empire series as well.