BibliOdyssey came to my attention because of tweets about their Victorian Infographics post, which is very nice, but they have lots more in a similar vein. I also liked History of Colour Systems, and especially Arabic Calligraphy:

The idea that this beautiful interweaving is also writing is fascinating to me. The post has a few other examples of abstractly beautiful Arabic writing, and links elsewhere.

That’s what BibliOdyssey is like: a quick browse in a rich library, a brief introduction to exotic topics with pointers off to more information. There’s no way to chase them all down, but I feel like in another life I could devote myself to their study...