A couple of months ago, I wanted to introduce a friend to Ren'Py to help me with my project. He had no idea about programming at all, so I tried to make a guide for him. He didn't end up using it, and I decided to make it available for everyone.
You can find it here, on Google Docs: https://docs.google.com/document/d/1010 ... sp=sharing
It's a super-first-time-beginners-guide that only covers the absolute basics. The current TOC:

You can find all this info in the official Documentation, but I wrote it from scratch in my own words with my own examples. Maybe it will help someone!
Feel free to share it!
If you notice any errors or something is explained weird, feel free to point it out and I'll fix it.

