The avatar image is by [Larry Ewing](http://www.isc.tamu.edu/~lewing/)
and [Simon Budig](http://www.home.unix-ag.org/simon/). Licensing info is [here](https://en.wikipedia.org/wiki/File:Tux.svg).
The pdf version is free. You can find it inside the `build` folder for each issue. I will also issue a release, so you can check there, as well.
If you want to buy a paper version with a fancy colored cover, printed up as a little booklet and saddle stapled (just perfect for reading on the go), you can buy them from my etsy shop. I'll include a link here as I add each issue.