a technique of "booking" - usually used for long lengths of wallcovering, especially borders. After the paste is applied or the prepasted product is dipped in water, it is gently folded back and forth, paste to paste and then front to front - resembling an accordion. This allows the wallcovering to relax and it makes long strips easier to handle during installation.

A folding technique used for a booked strip of wallpaper. The paper is folded back and forth to keep pasted sides together and allow relaxing or expanding time. This fold also makes long strips easier to manage during the installation.