Now that's what you call an impressive domino chain!
Yeah, a Belgian book association has broken the world record for the longest book domino chain ever.
The record-breaking event was designed to celebrate books and promote reading.
A total of 4,845 books followed a pathway through the Antwerp book fair -spelling the Dutch words for "book," "fair" and "read."
It took forty volunteers two hours to set up the lines of books.
At the end of the 614-metre-long journey, which took only six minutes to complete, the books set off fireworks. Oh we do love a celebration!