The emotions suggested by facts, not the facts themselves, are what concern the picture maker. This is where he is differentiated from those who seek… - Arthur Hammond

The areas of tones are called masses and, whatever the subject of picture may be, its success as a picture depends very largely on the effectiveness of the spacing and massing.

...there is another kind of perspective that is of great importance in picture-making. This is known as aerial perspective, and this kind of perspective imparts "atmosphere" and depth to a picture, and gives a suggestion of space and distance in an outdoor view.

A photographer must have as sound a knowledge of picture-making as a painter, and he must have such control over his chosen medium that he can put personal expression and his own individuality into his pictures.