Sherlock Holmes has long been a popular character for pastiche, Holmes-related work by authors and creators other than Arthur Conan Doyle. Their works can be grouped into four broad categories:
Arsène Lupin versus Herlock Sholmes by Maurice Leblanc
Buster Keaton in Sherlock Jr. (1924)
Traditionally, the canon of Sherlock Holmes consists of the 56 short stories and four novels written by the British writer and physician Sir Arthur Conan Doyle. In this context, the term "canon" is an
Sherlock Holmes and his biographer Dr John Watson, as depicted in a Sidney Paget drawing in "The Adventure of the Empty House"
First edition cover of The Memoirs of Sherlock Holmes, published 1894.
Promotional poster for Sherlock Holmes: A Drama in Four Acts, first performed in 1899.
Cover of The Exploits of Sherlock Holmes, published 1954.