Free Linux Magazines
Everybody wants something for free so I know you are all waiting for the catch.
All the magazines are Kindle versions of the magazine. In addition to this to be able to download the magazines you need to download the Appstore application onto an Android device.
The good news is that the Appstore application is free and the magazines are free.
If you have the Kindle Fire then you already have the Appstore installed. There are instructions how to install using other Android devices.