I'm finding out about Ramon Llull, particularly his tree diagram for the organisation of knowledge (1295). I think there's a commonplace connection to be made here in ways of organising the pages to reveal and conceal the ideas that you enter; but one thing is certain. The books I make in response to this topic have to grow: leather bark that forms new shapes of wraps and twists; sticks that twine from the covers; wood as carriers of text; leaves that sound as they gently touch your fingers.
And chains. I'm afraid these books must be chained. It's a traditional way to control access to knowledge.