Robin Sloan grew up in Michigan and now splits his time between San Francisco and the internet. He is the author of MR. PENUMBRA'S 24-HOUR BOOKSTORE, SOURDOUGH and MOONBOUND.
Web designer Clay Jannon finds himself out of a job. Thanks to serendipity, Clay begins working the night shift at Mr. Penumbra’s 24-Hour Bookstore. Clay wonders how the store stays in business. There are only a few customers, but they never seem to actually buy anything. Clay's investigation soon reveals secrets that can be traced back to the world’s first typeset books.