Michael Joyce's "Of Two Minds: Hypertext, Pedagogy and Poetics" is one of the books on my bookshelf that is for owning, not for borrowing. Published in 1995, it represents the apex of early hypertext writing, but it is constructed completely without the need to reference an actual "world wide web" that actually exists in any form.
Freed of the obligation to describe or think about a hypertext system which now is how most people think about web-based systems, Joyce's work lets you wander through the world of hypertexts that could have been - the one where you can "press the words on a page of a book you're reading to see what's behind them [or] probe the words as you're listening to someone".
Michael Joyce "sat in" on an online conference I organized at the University of Michigan in the 1980s, and contributed some of his words to my undergraduate education.
Lincolns and Olds, me she ganders.