1.      Consistent structural unity is the principle that determines, by the structural form, the direction which all decorative material should follow.  Decoration follows structural lines, it emphasizes and strengthens them.
2.      Consistent shapes are those which have more elements that are similar than dissimilar.  (Elements:  general form, kind of line, kind of angle, diameter.)  Harmony of form is attained in this manner.
3.      Balance is that principle of form which gives rest, repose, and stability through equalizing attractions on either side of a given axis as center.  Balance is bisymmetric or occult.
4.      Movement is that principle of form by which the eye is led from one spot to another in sequence.  There are two kinds, opposition and rhythm.  When a stone is dropped into still water we have rhythmic movement.
5.      Emphasis is that principle of form through which attention is directed to a particular place.  There should be good reason for its use.
6.      Unity is that to which nothing can be added and from which nothing can be taken without injuring, if not destroying the purpose or appearance of the subject.
7.      Technique is the artist’s execution, it is his handling, or rendering, or the way he puts his paint on canvas or paper.
8.      The elements of composition, in fact, are repetition and contrast in a state of balance, sometimes with the added charm of rhythm.