the little purple books you buy from the NPCs are Bugged atm. when you copy into them using the inscription skill it only copys the title and "locks" the rest of the book. you lose the ability to turn pages or edit the book at all. Also when you copy a sealed book the copy is automatically sealed too. You cant edit them or update them at all anymore. I noticed the old books i still had from before the Pub seem to work fine.