I don’t know if this has been pointed out by anyone else, but Sherlock hiding his cigarettes in the persian slipper doesn’t go unnoticed by John, in the beginning of The Hounds of Baskerville Sherlock checks the slipper and it’s empty.
“Academic libraries have been at the leading edge of technologically driven change for many years. Library services, from what I can see, have had to change at a faster rate than other academic services. Where teaching has changed mostly at the margins (so far), academic libraries have had to pivot from a regime of information scarcity (the card catalog, subscriptions, collections, etc.) to one of information abundance (Google). From purchasing journals to licensing databases. From housing books to providing collaborative work spaces. Has any part of the modern university changed more in the past 20 years than the library?”