Lingo in a Nutshell: A Desktop Quick Reference (In a Nutshell (O'Reilly))

Beyond this, the nutshell library is designed as a reference for programmers who want to quick-reference a new language. If you're already up to speed on C++, Java, SQL, etc, then the nutshell format will make sense as you seehow Director includes functions and classes in the form of handlers and properties. However, for the novice programmer looking to learn more about scripting Lingo, this book is awful.

I'd recommend the Director Demystified series instead, whatever's the latest edition. Macromedia's version updates aren't drastic, so at this point a book covering 8.5 is just fine.