Early in 2021 I drew a montage of tyre treads as a basis for an etching plate.
It was etched into a zinc plate, printed in several ways and 2 pieces were made into a stitched booklet for a friend.
Other copies of the print have laid around since then so last week I turned them into a back-to-back concertina as a sample for a folded books mini-workshop I taught yesterday.
The front of the concertina, above, shows two complete prints with a third cut in half creating the book ends.
The back shows three complete prints. This is a very simple glued double-sided structure and is formed by overlapping each of the prints where they fold down the middle, with half prints at either end to fill in the final sections. Mine is made of 6 prints but this concertina can be made using as many pieces as you like.