I love all the warnings about the OTHER Third & Spruce. And I, too, can attest that you definitely don't want to go to the wrong one. Skeeeeeeeetchy. I remember talking to Kat Rocha and Josh Finney about it a couple of years ago because they went to the wrong one first, too. Kat said something to the effect of "I grew up in a not-great part of Los Angeles, and even I didn't want to get out of the car there." :D
Mr. Penumbra's 24-Hour Bookstore by Robin Sloan. Good so far, but the library sent me the large print edition, so it's kinda like the book is yelling at me!