Upstairs at the Square, mixes writers and musicians for an evening of reading, music, and conversation hosted by journalist Katherine Lanpher at the Union Square store in New York. Tonight, (Tuesday, October 16), bestselling British author Nick Hornby, whose new book is Slam, and his friend, singer-songwriter on-the-rise Josh Rouse, whose latest album is Country Mouse, City House, will take the stage to discuss and perform their work.