We have the opposite problem with our nearly 11 year old. We've had to tell him that he can't just sit and read at recess...he HAS to be social, too. His social skills are somewhat lacking and it's in part because he'd rather hole up in a corner with his nose in a book than cultivate friendships. And often it's not that he's reading something new and gripping...he's rereading the same novels over and over. We wish he'd embrace a happy medium.