All the presentations are made available as SVGs because of the size. I will eventually include or link to high-quality PNGs so you can download or view them all once (gallery-style, maybe?) but that won't be for a while.
All presentations were made with Inkscape. The content is licensed under [CC-BY 4.0](http://creativecommons.org/licenses/by-sa/4.0/) but some images are from [unDraw](https://undraw.co/illustrations/); here's a link to their *very* [permissive license](https://undraw.co/license).