So you have some prize paperbacks. Maybe you're the author, and you want to display them.
I did some extensive googling, only to reach a dead end. And then I had a weird idea.
Those plastic splatter-proof cookbook holders. Turned sideways.
Here it is on Amazon.com Cookbook Easel with Splatter Shield
If you click through, you'll get the same price as everyone else, but I'll get a small percentage because this is an affiliate link. I hope you feel I've earned it.
Notice that the "bottom" of the easel is instead enclosing the page side of the book. These easels really hold paperbacks together well.