https://mitpressonpubpub.mitpress.mit.edu/pub/syyor4ra/release/1?readingCollection=31668090

From Chapter 3 of Remi Kalir and Antero Garcia's book Annotation.

I've referenced this image so many times, I ought to finally bookmark it, right?

Ted Nelson shows a similar one when talking about Project Xanadu and the importance of parallel texts.