Crease the paper well with your fingers so the fold stays in place.
The more you crease your paper, the better your concertina book will fold in the end.
If you push in on the fold that you made in the last step, the square will form easily.
You can let go of the paper once you’ve made that fold. It may unfold a little bit, but that’s okay!
Try to make sure all of your papers look the same so that they’ll all fold in the same direction.
You should have alternating pieces of paper so that you can see the pattern from every side. Try using a glue stick so you don’t have to wait for it to dry. This will create the first fold in your concertina book.
If you used liquid glue, set your paper aside for about 5 minutes to let it dry.
The cardboard will be the end pieces of your book to make it stronger and easier to unfold.
You can use the same paper that you used for the inside of your book, or you can choose one with a different pattern for a pop of color.
It might be easier to fold up your pieces of paper before gluing them to the cardboard so you can really press down on them.
