Take it with you everywhere and every time
All my books are put in a bag once they are ready. After all, the book is supposed to be stowed away safely the child should be able to take it everywhere. In these cloth bags they can be
dragged along easily.
Usually, I use canvas, a sturdy type of material, that can endure a lot. Sometimes I also use ordinary cotton fabric that is thematically suitable for the book.
Recently, my books have been living in their own cupboard. One day, they will be able to come out to play again.