Twenty-one years ago, I created a small website to collect and organize information about the Harry Potter novels. I was part of an online discussion group called Harry Potter for Grown Ups, which is just what it sounds like, and we all needed a quick way to find details from the books as we discussed the clues and hints that we found as we read the novels. I wanted to call this website The Harry Potter Encyclopedia, but at the time there was already a website called The Encyclopedia Potterica, so I had to come up with something else. Since at that time the site was essentially just a list of the cool names of things in the books, I decided to call it The Harry Potter Lexicon. The first version went online in 1999, but I didn’t really share it with anyone outside of some folks in the Harry Potter for Grownups group. When I was ready for other fans to see it, I made it public in July of 2000. Over the next two decades, the Lexicon changed and grew a lot. There have been four versions of the site over the years. The original version was completely created with text. Any design elements came from using different text colors and sizes. Since everyone was on slow dial-up at the time, it was important that the site would load fast. I wanted users to be able to follow links and smoothly move from one page to another. There was no artwork at all.  That “text only” idea didn’t last long. Within a few months of starting the site, I contacted Warner Bros and got permission to use the chapter artwork from the books on the Lexicon — yes, at that point Warner Bros was the gatekeeper on all visualizations of the Potter novels. That was a bit of a turning point because it marked the first appearance of artwork on the site. At that point I redesigned the Lexicon to include that artwork as well as created headers and things to dress up the pages. The overall look of the home page was that of a bunch of Diagon Alley signboards. I also created the Bestiary and the Atlas and started creating maps and charts.