Books

I have a tendency to wear out books. I don't know what I'm doing wrong. Maybe I hold books incorrectly; or maybe I read too slowly, so the book has to be held open longer. I always get books from friends that they claim to have read but seem to be in nearly perfect condition. This makes me suspect of whether they have actually read the book; because after I'm finished with it the binding tends to be quite a bit more worn, or there seems to be a slight crease in the cover from holding it open. I need to either learn to hold a book properly or learn to read more quickly.