Time to Read: The book is deep and thoughtful. For that reason I'd say it takes a while to read. On the other hand I found it engaging which helped me finish more quickly.
Quality: The writing is skillful. The physical condition of my text, used 1st edition 1966, was rough.
General Review:This book reminds me of Bernard Chaet's book The Art of Drawing in the way that Hill skillfully explores and illuminates the form and content of images. He has a deep passion for drawing and the love that he shares for it is infectious. The vocabulary is quite advanced at times but terms are chosen with precision. For example, in one discussion Hill describes the interior tension in a figure as a catanery curve and the description is correct. The book could be enjoyed by anyone but if you have had a long relationship with drawing it is something to savor.