If you want to copy a Preparation Ritual (PR) into your spellbook can you? I would assume it's the same as copying a spell, but since there's no explicit rule its open to interpretation. Can more than one PR be in a spellbook (although you can only get the benefit from one PR at a time)?
I have a found spellbook with a PR, but I've just crafted a Blessed Book. I want to copy the PR into the Blessed Book but my GM wants me to find a rule to support I can do it. Please, anyone?