DON'T CRITICISE!!! THIS VID IS TO HELP PEOPLE WHO ARE LEARNING. - Part one of a demonstration on layering long hair. All hair is held up vertical and cut across at 90 degrees. The perimeter hair (longest length) should not reach the guideline point, and so will not be cut into. If the perimeter hair does reach the guideline, overdirect it to preserve the length.There are many ways to execute a layered haircut, this is just the way I was taught.