This Saturday a group of readers are asking friends to shop at their local bricks-and-mortar bookstores to keep them open on the second annual Save Bookstores! day. Literary agent Kelly Sonnack, with the Andreas Brown Literary Agency, set up a Facebook page to promote the event to more than 8,000 of her closest friends. Bookstores in the U.S. and Canada are participating, from Nan’s Pre-Owned Books in Grover Beach, Calif., which will be offering discounts, coffee, and cookies to celebrate, to Collected Works Bookstore & Coffeebar in Ottawa, which is holding readings and signings all day.