By Adam Markovitz
Updated June 11, 2009 at 10:55 AM EDT

HarperCollins Children’s Books has bought the rights to thirteen kid-friendly titles based on Marley, the dog who became a star of page and screen with author John Grogan’s Marley & Me and its big-screen adaptation, starring Jennifer Aniston and Owen Wilson. Several youth-oriented Marley titles already exist, including the middle-grade memoir Marley: A Dog Like No Other and the picture books Bad Dog, Marley! and A Very Marley Christmas. Among the new entries, three will be picture books, including Marley Goes to School.