The Hidden Factor by Steven Skaggs

B4512. The Hidden Factor - Mark and Gesture in Visual Design by Steven Skaggs. Hardcover, 192pp, 9 x 8 inches. 

By mapping different kinds of marks and showing how marks combine with image and word, it explains that our desire for conceptual information suppresses our awareness of marking. This is especially the case with the tension between word and mark, where we desire legibility. As a result, one of the most conservative of arts—calligraphy—has the potential of being the most radical, since gesturally expressive handwriting is a natural threat to the legibility of a text.