This was the very beginning for me, when I knew nothing about the language or coding in general. The tutorial I started from can be found here, and is fantastic for the most beginner of beginners to understand. The forum as a whole has been growing a lot in the last year as a resource for Lua programming in MA.

This book has been and continues to be a fantastic resource for me as I learn. The book is written by the same people who have built the language. When you buy it, you are directly supporting the development of the Lua project. And it is, in my opinion, a very well laid-out resource with a lot of good examples to help you grasp the concepts it covers.

A massive collection of resources for understanding and utilizing Lua programming, from the initial installation, to tutorials, to code samples, to links to outside resources, to extension library modules, and much more. Bookmark this page and make it your friend.

A Facebook page I've recently found specifically for Lua in MA. I'm still exploring it myself. Seems geared toward helping beginners to Lua programming in MA.