If you are not licking the pages (I imagine it takes something a bit stronger than available in local libraries to inspire that), then it's a simple case of washing your hands after reading and keeping your fingers out of your mouth and eyes. Possibly wipe down the cover with sanitizer (not ordinary Tizer). The likelihood of picking up the virus from a couple of random pages in the book would be very low, especially after a couple of days (as I've said, nearly all the studies of virus persistence have looked at the nucleic acids, rather than infectious virions).
But seriously, even when this is over, don't lick the library books.