Arthur Conan Doyle (1859—1930) was an English writer best known for his detective stories about Sherlock Holmes. After the event of World War I, the famous writer drew almost all his attention towards spiritualism. "The History of Spiritualism" is one of the most extended of Doyle's nonfictional works advocating this teaching. It contains a huge amount of essays on this topic, considering the many different aspects of this phenomenon.