Instruct: Classify Amazon reviews into positive or negative sentiment
Query: finally - an intelligent drawing textbook!

I knew from the beginning pages of this text where Curtis emphasizes the importance of developing sensitivity to the quality of the mark on the page, that this book should be in the collection of all student and visual arts professionals. It was exciting to find an intelligent text that is focused, well organized, generously illustrated (over 500 images), and so completely thorough in its presentation of observational drawing techniques and theory. It is packed full with instructive information and additional reference material that sets this book apart from any other drawing text that I have seen.