Mr. Penumbra's 24-Hour Bookstore - Robin Sloan Hey, the cover art is glow-in-the-dark. Fun!

A charming little book that made me think of a kinder/gentler Da Vinci Code for bibliophiles of all stripes (print &/or e-reader) & font nerds. Nothing earth-shattering, but a fun choice if you need something nice, light, & pleasantly interesting.