This book-collection file includes six books. Three are on war -- The Great Boer War, The War in South Africa, and A Visit to Three Fronts, June 1916. Two are on Spiritualism -- The New Revelation and The Vital Message. And one on Medicine -- Round the Red Lamp: Facts and Fancies of the Medical Life. According to Wikipedia: "Sir Arthur Ignatius Conan Doyle, DL (22 May 1859 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."