Put the books you really don't want damaged where she can't get them, then hope for the best with the others. There aren't too many books in our shelves that don't have sticky tape somewhere. The boys don't like tham any less because they look shabby... in fact the shabbier the book, the more likely it is that it is one of their very favourites.
In my experience they just don't understand why books are so special. They do stop pulling them to pieces, but even my 4 year old is not 'gentle' with them as such... pages still get crumpled during readings.