When slacker web designer Clay Jannon finds himself downsized into unemployment, he takes a job working the overnight shift in a small, quirky bookstore, run by the eccentric Mr. Penumbra. Restlessness and curiosity drive Clay to stumble onto a vast, old conspiracy. Suddenly, his world is a collision of old and new, ancient bound books and pirated ebooks, hipster New York bars and Google headquarters in California. Such is the fun, fast-paced, geeky adventure of Mr. Penumbra's 24-Hour Bookstore. I adore this book! I'm not usually a fast reader, but I tore through Mr. Penumbra's 24-Hour Bookstore, loving every nerdy moment. The novel is bursting with geeky enthusiasm for artists and eccentrics, epic fantasy trilogies and tabletop role-playing games, "white hat" computer hackers and greymarket technology, typography, history, and above all else, friendship. It's fun, it's exciting, it's silly, it's touching. If you like the J and YA stories of Daniel Manus Pinkwater, the insane conspiracies of Dan Brown or Foucault's Pendulum, or the Gen X nerdiness of Ready Player One, you will love Mr. Penumbra's 24-Hour Bookstore.