If you wish to learn more about Gnome Engineering, take the Manual of Engineering Disciplines to Tinkmaster Overspark in Ironforge.
Engineering at the expert level breaks into two disciplines: gnome and goblin. Gnome engineering represents by far the superior of the two! It's about the construction of wonderful gadgets and devices that make life better!
[player], read this manual. If you want to learn more on gnome engineering, then take that manual to Tinkmaster Overspark here in Ironforge. Remember - membership is permanent and prevents joining the other discipline, so make sure you are sure before finishing his task!