@infobeautiful Well, when you collect old books or work with papers as an artist, you will find that this map is purely colonial thinking. 😉
You can print a book in folio or quarto format. Art papers are measured differently in Japan, Great Britain or France. Such a world map would be much more colourful! https://en.wikipedia.org/wiki/Paper_size
@infobeautiful
I grew up in Europe, with A4 and its relatives.

I love the logic of the A-series: Each format in this series is half the size of its „parent“, all of the with the same aspect ratio of 1 to squareroot of 2 (ca. 1,41). The largest is A0 with an area of 1 square meter.
If you cut it in half, you have two pages A1, and so forth.

The Wikipedia page on paper sizes has more, including a somewhat differentiated version of the map: https://en.m.wikipedia.org/wiki/Paper_size