Nothing Like A Good Book + Shop

I've been laid up for a few days with a bad back, and have been thrilled to delve into the towering stack of books by the bed.  (They may come crashing down upon me some night, so if I disappear one day, check the bottom of the pile.)  The second-hand shops of Maine provide such bounty for as little as 25¢ per book, and I suppose I get a little carried away. Click here for places to shop if you are ever out that way...

Had to share this little clip--so clever!  How do they do these things?