It's precious far to go, but thanks to online booksearches (about which more later), I recently purchased a P. Schuyler Miller book (long out of print) from a delightful used bookshop in Alnwick, Northumberland -- the one on the other side of the Atlantic. Barter Books is located in a Victorian railway station and the photos on the little flyer that accompanied the book reveal something of a reader's wonderland.
...Enchanting as all that is -- and it is -- another "little flyer" arrived in the envelope* with my book: Some Notes On Searching For Books. With all its hints, links and good advice, it is also presented on their website. Highly recommended!
* Metered postage, alas, unless they've replaced the Queen with a black monolith without telling me.
3 months ago