Value gives the artist the means of showing subtle changes in a form's surface-state, and it helps clarify the relative distance between forms.
Nathan GoldsteinValue, whether the result of massed lines, broad strokes, or washes, is the necessary and only tool for modelling form with light.
Nathan GoldsteinPerspective should be learned - and then forgotten. The residue - a sensitivity to perspective - helps perception, varying with each individual and determined by his responsive needs.
Nathan Goldstein