Started Nathan Fowkes' Head Drawing Class. He is teaching the Reilley Method of the Abstraction of the Head. I always heard it called the Rhythms of the Head (lower left hand corner). It is interesting because Glen Orbik stresses the planes of the Head more than the Rhythms of the Head but I think I remember Mark Westermoe starting us with the planes of the head and moving to the Rhythms. There is a youtube lesson I watched of Glen Orbik teaching the rhythms of the Head.
The first night in class we worked on some rhythms.