When you're trying to find your way around a large ebook or document, you frequently find yourself asking these 2 questions: 1) Where the heck am I? (after scrolling around a bit) 2) How can I get to where I want to go easily and quickly? I believe I've designed a system that fixes those problems, and even works well on small mobile devices (tested on 8" android tab device so far). Try this for example, entire MN in one file. https://lucid24.org/mn/esq/frn/index.html
always question authority