VIDEO: The world's longest book domino chain at the Seattle Public Library

Well, this is just delightful. It took 2,131 books and 27 volunteers, but two college students (and the Seattle Public Library) set a world record on Friday with this epic book domino chain. 

The stunt was designed to draw attention to the library's Summer Reading Program, which is underway now. 

And don't worry -- no books were harmed in the making of this video.