Xavier Olive #30DayMapChallenge

30 day map challenge

The #30DayMapChallenge is a project started by Topi Tjukanov: it is a daily mapping/cartography/data visualization challenge aimed at the spatial community. The idea is to create (and publish) maps based on different themes on each day of the month using the hashtag #30DayMapChallenge.

Taking part in that challenge was not my original plan, but it turned out to be fun to give it a try. As a developper for a mapping library cartes, it felt like the perfect opportunity to use it to quickly produce many maps.

It certainly proved useful in many situations, but also showed many little bugs here and there in the library. A new release will certainly come out after things cool down.


My mapping toolchain is rather Python based, with some sprinkles of Javascript. It usually includes:

I also appreciate, also I am not (yet?) proficient, the d3.js library with the Observable environment: