In The Great Typo Hunt, Benjamin Herson and Jeff Deck humorously document their drive around the the U.S. fixing typos in public signage using markers, Wite-Out and chalk -- yes, really. Herson and Deck were even summoned to federal court for defacing a historic sign at the Grand Canyon, all in the name of grammatical accuracy. You go, guys! They'll be reading and signing on Thursday, Aug. 19, at 6:30 p.m. Borders Books & Music, 1801 K St. NW. Call 202-466-4999 or visit borders.com.