Yes, preferably one overflowing with books stacked on every possible flat surface, just the right amount of disorganization that people can find something cool that they never would have even looked for.
I am amazed... 2 bookstores near me: one that is a 2nd and Charles, a huge used bookstore chain, and huge stores; and another local used bookstore that is wall-to-wall, crammed with books, not a spare cranny. So easy to get lost in though and intrigue, just a delight.