This is a wall decor made with magazines. I found it somewhere on the internet. A magazine with at least 50 sheets will give a good effect.
Step 1 - Hold the top corner of the sheet, fold it inward so that the top edge tucks into the magazine and crease it.
Step 2 - Repeat this for all the pages and again, for the bottom half of the sheet. do not crease it when folding the bottom half.
No glue required.