"The Practice and Science of Drawing" is an extraordinarily brilliant work that also contains extensive discussions about modern art and various styles techniques and philosophies of different artists.
In Chapter I for instance the author talks about the various studies about different artists' styles and points of views.
In describing the works of different artists for instance the author writes:
"If anybody looks at a picture by Claude Monet from the point of view of a Raphael he will see nothing but a meaningless jargon of wild paint-strokes.
And if anybody looks at a Raphael from the point of view of a Claude Monet he will no doubt only see hard tinny figures in a setting devoid of any of the lovely atmosphere that always envelops form seen in nature. So wide apart are some of the points of view in painting."
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More importantly "The Practice and Science of Drawing" is also a scientific investigation about the art of drawing.
Take for instance how the author expounds on the art of drawing:
"The best things in an artist's work are so much a matter of intuition that there is much to be said for the point of view that would altogether discourage intellectual inquiry into artistic phenomena on the part of the artist.
Intuitions are shy things and apt to disappear if looked into too closely. And there is undoubtedly a danger that too much knowledge and training may supplant the natural intuitive feeling of a student leaving only a cold knowledge of the means of expression in its place.
For the artist if he has the right stuff in him has a consciousness in doing his best work of something as Ruskin has said "not in him but through him." He has been as it were but the agent through which it has found expression."