Nice that you want to read it! As mentioned, it might be safe to read in regards to germs, but that doesn't change how you feel about it. For the pages, you can put a book in your freezer for a couple of days (put it in an open freezer bag so moisture can escape), that way germs and other things will freeze and die. For the cover, I suggest wiping it with a (desinfecting) wet wipe. That shouldn't damage it.