Monday is the day I visit book stores. As a writer, I always have projects in the works. Made a pretty good haul yesterday. My tote bag weighed almost 15 lbs!
One large store has a hobby section, with a few shelves devoted to coin books. I am often surprised by what I find.
Many Official Red Books were seen at this store, including Washington quarters, double eagles, gold dollars, Buffalo & Jefferson nickels. Volumes on world coins are here, paper money too. There is quite a selection of Red Books too, some going back to the 1970s. Basic hobby books are here, along with more detailed works, such as an older guide to pattern coins.
I've found some auction catalogs, too. Many of these are reference books in themselves.
Used book stores can be a goldmine for coin hobbyists who look and visit every few weeks.