Autolayout explained to non developers
Good article in iMoore about the future of the iOS UIs, but the best part is how it explains autolayout to non developers. Easy.
If you imagine the “guides” in iWork, the ones that let you snap one item into position relative to another, then imagine that those guides would never disappear, and could be saved as persistant “constraints”, then that gives you an idea of the basis for Auto Layout — defining relationships.