The book won the Hugo Award in 1990 and is about a group of pilgrims that go to the planet Hyperion to confront and find the answers to the riddles of their lives. Mixed in with this is a mysterious being called The Shrike whom some worship, others fear, and some want to destroy (paraphrased from the back of the book).
The book has a Canterbury Tales feel to it with each pilgrim sharing their own personal story.
I am about 100 pages into the book and REALLY enjoying it so far. I've read the first tale (The Priest's Tale) which was amazing! I'll write more as soon as I finish the book.