The five Sherlock Holmes story collections are: The Adventures of Sherlock Holmes, The Memoirs of Sherlock Holmes, The Return of Sherlock Holmes, His Last Bow, and The Case-Book of Sherlock Holmes. The Case-Book, first published in 1927, is still under copyright in the US. According to Wikipedia: "Sir Arthur Ignatius Conan Doyle, (22 May 1859 â 7 July 1930) was an author most noted for his stories about the detective Sherlock Holmes, which are generally considered a major innovation in the field of crime fiction, and for the adventures of Professor Challenger. He was a prolific writer whose other works include science fiction stories, historical novels, plays and romances, poetry, and non-fiction."