Descriptions of Gestures?

Is there any list of trackpad gestures with pictures or descriptions of how to activate them? I can't for the life of me get the triangle swipe to reliably work, and I have no idea what a tip-swipe is. Clickswipe also sounds intuitive, but doesn't work the way I'd expect it to - I still can't get that to activate


I'd like to have a description too!

I think that is very neccesary for new users.