Honestly, the official book is just so very good and Lua is just so very compact that I don't quite see the need for a tutorial like this. But whatever, someone

Honestly, the official book is just so very good and Lua is just so very compact that I don't quite see the need for a tutorial like this. But whatever, someone spent a lot of effort doing this, and it does not seem bad, so more power to that person. However, the basic syntax and library of Lua is extremely simple. There is just not much to be said about it that you can not see from a few code samples. What I would like to see is a comprehensive tutorial for the interesting stuff: How to use metatables, how to build great scripting APIs, how to implement object systems, how to use the C API efficiently. But then, as I said, the official book does a good job of that already.