Mr. Penumbra’s 24-Hour Bookstore

Robin Sloan’s funny debut novel, Mr. Penumbra’s 24-Hour Bookstore, is both a celebration and a send-up of the clashing worlds of technology and those who cling to dead-tree books. After losing a job at the corporate headquarters of NewBagel, where “ex-Googlers” developed software to create the perfect bagel, Clay Jannon gets hired at an unconventional…