Nostalrius Begins - Quality wow vanilla realm (1.12)

Hey, I wanted to start making couple of addons, and I stumbled upon this book. I am just wondering if it is usable for vanilla WoW, or has there been a significant API update since vanilla?

This will work for 3.3.5a client.But you may find usefull stuff in it.

http://wowwiki.wikia.com/wiki/World_of_ ... did=263854

TBC version of the book would be http://www.amazon.com/World-Warcraft-Pr ... 470229810/

IMHO, the best way to learn the vanilla api API (much of the api was changed with TBC,) Is to extract the MPQs. All internal interface code is in non-obfuscated LUA, It's a great reference.

Overtime wrote:http://wowwiki.wikia.com/wiki/World_of_Warcraft_API?oldid=263854

TBC version of the book would be http://www.amazon.com/World-Warcraft-Pr ... 470229810/

Are there many differences between TBC API and Vanilla?

Reading books is a horrible way to learn skills imo. But people learn differently i guess.

I bought the book Lua with World of Warcraft (ISBN 978-1-4302-2371-9), and although it is also targetted against WoTLK (I bought it back in 2009), it is a good entry point for learning how to make addons.
It explains the general flow with events and the UI setup (which basically is the same as Vanilla).

When it comes to how to use the events, then the Internet is the only source; the book is not of much help here really. Especially http://wowprogramming.com/docs/api_categories is a nice source of information for all versions of WoW.