[Yoda]

Hookfaced position is when the initial ball flight plane runs directly vertical to the clubface plane and the lie angle plane whilst another plane can be made that is directly vertical to the lie angle plane on a line where the clubface plane intersects the lie angle plane which is also vertical to the clubshaft plane. To the degree that the clubshaft is moved around in a circle from - vertical to the lie angle plane - to towards the lie angle plane itself on the clubshaft plane is the degree it is hookfaced.

Offset is when the initial ball flight plane runs directly vertical to the clubface plane and the lie angle plane whilst another plane can be made that is directly vertical to the lie angle plane on a line where the clubface plane intersects the lie angle plane which is closed to the clubshaft plane. It is most likely that an offset club has a combination of hookface and offset.

There you go!

Mathew, were you planning on drawing this?