Best way I'd recommend a user learn autoit is by randomly searching for cool scripts, play with them and change stuff until you mess it up. Gives you a good feel of how autoit works.
I've also made a habit of saving every script that seems interesting to me in a folder called "script bank", it's already grown to be 150+ mb and it's very damn handy to use when creating new scripts because I tend to separate functions that do an intended action into categories, this way I can just do a quick search through the folder, and I'll have a working script in no-time after a few copy and paste maneuvers.
I've probably got at least 30% of all the scripts in the example section separated and categorized in there.
