While there aren't a whole lot of books about Lua, the official one (Ierusalimschy's _Programming in Lua_, 2nd ed., AKA, "the blue PiL") is excellent. That, the

While there aren't a whole lot of books about Lua, the official one (Ierusalimschy's _Programming in Lua_, 2nd ed., AKA, "the blue PiL") is excellent. That, the wiki, and mailing list archives (http://lua-users.org/ http://lua-users.org/) should pretty much cover things. The reference manual is also helpful, particularly for the C API. It's available online, but I like having a printed copy. (I also find its brevity re-assuring.) There's another book by that publisher that makes big red tree stumps, but I can't recommend it. (The _Lua Programming Gems_ has some good bits, though.)