"Associated Books" in the Sherlock Library

Doctor Dan's Sherlockian library. The globe is a bar.  

What should one include in a Sherlock Holmes library? 

That’s a matter of taste, of course. Mine contains several categories you might expect:  editions of the Canon, pastiches (including the Solar Pons series), critical works, biographies of Arthur Conan Doyle, and other works of Arthur Conan Doyle. Then there’s shelf I think of as “associated books.” 

Associated books, often but not always mystery novels, have some kind of plot connection to Sherlock Holmes, Arthur Conan Doyle, or related characters. Examples from my library include The Name of the Rose, The Curious Incident of the Dog in the Night-Time, Murder in the Library, Freddy the Detective, Baker Street Irregular, and many more. 

And if I didn’t already have a place for them elsewhere, all of my novels would go there as well. 

The three Enoch Hale books I wrote with my friend Kieran McMullen – The Amateur Executioner, The Poisoned Penman, and The Egyptian Curse – all include an aging Holmes as a character. That could qualify as pastiches, by some definitions. But Holmes is mentioned multiple times in all of my Sebastian McCabe – Jeff Cody mysteries. 

Mac, an eccentric amateur sleuth in the Golden Age, is a Sherlockian who often quotes the Master and references the Canon on his way to solving the case. In his latest adventure, Erin Go Bloody, the name “Sherlock Holmes” appears 11 times.  Some of the allusions are important to the solution. Perhaps this scrap of dialogue is one of theme: 

 “She admitted she was just guessing based on behavioral clues.”

“That is precisely what Sherlock Holmes did, old boy. He called it deduction.” 

What's your favorite book “associated” with Sherlock Holmes?