What type of book packing material is it called?

Question

I purchased a book last week and it arrived packaged between two sheets of very hard stiff cardboard. I was wondering where I could purchase some. Does anyone know where I can?

Answer 1

From previously working at a bookstore, the packaging normally used is basic cardboard. You wouldn't need to purchase it since most stores will give you free cardboard boxes. Just cut a piece of the box to the shape you want. If it's an entirely different type of packaging you are seeking, I apologize for not being helpful.

Answer 2

You could find some in probably Home Depot