I'd class this website as good if you want to make a visual impact, but giving subtly bad advice if you want to visualise data.<p>Looking at the selection for proportions [0] there are things like circle packing or bubble maps presented as options. These are terrible ways to encode visual data if the intent is for the audience to actually take an interest in the data itself. Humans are really bad at interpreting the relative size of areas, especially circles. They really only make sense if the intent is to wow the audience that you have data and design skills, then everyone moves on without asking tough questions. Fair enough, sometimes that is the right thing to do, but it isn't a good way to visualise data. Use bars.<p>[0] <a href="https://datavizcatalogue.com/search/proportions.html" rel="nofollow">https://datavizcatalogue.com/search/proportions.html</a>