Engineering at the expert level breaks into two disciplines: gnome and goblin. While I think it is a waste, you should be aware of gnome specialization. They make items and gadgets that claim to change the world, but rarely often work.
[your name], read this manual. If you wish to learn how to make metal paper weights, then take that manual to Tinkmaster Overspark in Ironforge. Remember - membership is permanent and prevents joining the other discipline, so make sure you are sure before finishing his task!
