I was pleasantly surprised to find the compete stories about Conan the Barbarian, written by Robert E. Howard, are now out of copyright. They've been compiled as an e-book - for just 99 cents!
The stories inspired two well-known movies starring Arnold Schwarzenegger, "Conan the Barbarian" and "Conan the Destroyer", which have attracted a cult following. For the benefit of those who may not have seen them, here are two of the theatrical trailers for the first movie.
Conan was a literary phenomenon. The stories inspired countless successors, and most modern sword-and-sorcery fantasy owes Robert E. Howard a debt of gratitude (not to mention acknowledgement for all the details borrowed from his work!). Personally, I find his Conan stories somewhat repetitive and "same old, same old": but I doff my hat to him for having, in a very real sense, founded the sword-and-sorcery genre with the character and his adventures.
If you're at all interested in modern sword-and-sorcery fantasy, whether as a reader or as a writer, this is an essential collection; and, at just under a dollar, it's unbeatable value. Highly recommended for its historical value (and for some good stories in the collection).
(A final note: some of the early reviews on Amazon.com complain about missing chapters in some stories. That problem appears to have been fixed - at least, the copy I've bought has no missing chapters.)