13 Tips for Choosing the Best Cover and Binding Materials
It also helps to:
8 Know the end-user.
For example, [for] teachers' editions … we often spiral bind them so they will lay flat. Also, teachers can fold the book in a way that allows them to easily carry the book around the classroom.
For our book clubs, however, we saddlewire bind the paperback editions. Parents need to be able to afford to purchase a book collection for their children, so we manufacture a product that can be sold at low price points for this market.