http://www.bigbluemarblebooks.com/kidslit12.htm Friday, April 13, through Sunday, April 15, 2012   Big Blue Marble Bookstore is proud to present its sixth annual Mt. Airy Kids’ Literary Festival! All events are FREE and open to the public!  l Poster created by Mark Mattson.  Check out his blog at http://mattsonstudio.blogspot.com/2012/04/posterized-2012-mt-airy-kids-literary.html.