We could flip through magazines randomly, or like my mom, read the last page of a novel first to see if it was going to have a good ending. The web didn't invent random access, it just made it very seductive with those pretty colored links begging to be clicked. I have tried to combine the best of both worlds in this site. You can go through it page by page with the next and back buttons under the Astronomical Images title, or you can click on any of the hypertext links and go directly to another page. Or you can navigate via a site map at the Table of Contents page .
Some people think it is a crime to change the colors of the links.
Everyone understands it. They compare it to changing the labels of the switches and dials on a car. However, I think they underestimate the intelligence of the public, as usual. Links here are presented in a light gray color, easy to differentiate from the black color of the normal text. If you want to know if something is a link, just put your cursor over it, and if it changes into a hand, it's a link and you can click on it.