Thanks so much Krisz! And I appreciate all of the helpful suggestions! I enjoy thinking about different ways to market offline. For Ephemera I embedded a Bitcoin private key across several pages the manuscript to a wallet with $300 worth of BTC. That was a fun promotion. I didn't realize LinkedIn was still effective in that way. I wonder if it would work for non-fiction? I always carry copies of my books too when I travel! I usually will seed copies in Airbnbs or give them away along my route, and donate to local libraries where I'm staying. I'm pretty sure I've gotten random foreign sales from people who've spotted the books in the Airbnbs. People always seem to be in a better mood and more willing to spend money on things like books when they're traveling.
RE: People Really Do Choose a Book by Its Cover