The Sherlock Holmes Companion: An Elementary Guide
The Sherlock Holmes Book (Big Ideas Simply Explained)
The Encyclopaedia Sherlockiana: Or, A Universal Dictionary of Sherlock Holmes and His Biographer John H. Watson, M.D.
The Sherlock Holmes Handbook: The Methods and Mysteries of the World's Greatest Detective
The Case Files of Sherlock Holmes
The Annotated Sherlock Holmes: The Four Novels and the Fifty-Six Short Stories Complete (2 Volume Set)
Sherlock Holmes For Dummies
The Mysterious World of Sherlock Holmes