No good books were harmed in the making as I only use well worn soft cover books. The top spine is made from these worn covers. Twine is then threaded through these sewn tops giving you the flexibility of removing or rearranging the images as you see fit. The tops also strengthen the banner and help it last longer than just hole punched varieties.Some of the books have good pictures on both sides.
A lot of thought has been spent on the shape of the bunting, hence some are not flag shaped but kept rectangular, which shows the image at it's best.