The rigged book made animation ease. You can open, manipulate pages, all in several controllers:

The model is fully procedural, it generates Mesh and UV using Geometry Nodes. 

You can set any dimensions: Width, height and thickness of book and cover

Hard and soft covers are supported

Blend control:

You can set pictures of your pages, they have to be in one image, arranged like this with any amount of cols and rows:

The cover looks like this, template is available:

I have also Page Flip – Rigged page for more precise control of the page animation