Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Might have been a great book with color

I found the book well-organized and quite lucid. The author clearly understands the program well. The book's Achilles heel (and probably the reason for its relatively inexpensive price) is that there are only a few color illustrations in the center. All of the other illustrations are done in low resolution B&W, making it nearly impossible to appreciate the techniques or changes in images. If the publisher had raised the price a few dollars and done the illustrations in color, the book would be vastly more valuable.