Found the presentation a little overwhelming in the current format. Took a bit to realize the preset part in the upper left actually led to further dataviz vectors like AA (yes/no), rarity, and Google Books inclusion. However, offers a lot in terms of the visualization and data depth available. Also liked https://archive.anarchy.cool/blog/all-isbns.html#visualizing for the region clustering look.
The preset year part was neat though in and of itself just for looking at how active certain regions and areas have been in publishing. Poland's been really active lately. Norway looks very quiet by comparison. China looks like they ramped in ~2005 and huge amounts in the last decade.
United States has got some weird stuff too. Never heard of them, yet Blackstone Audio, Blurb Inc., and Draft2Digital put out huge numbers of ISBNs.