Instruct: Classify a given Amazon review as either positive or negative.
Query: basic, lacking in depth of subject

The book is interesting but too basic. The book could possibly be of use for someone who is new to the subject. Benson only touches on material in a overview. The book would have been a better value, if he expanded on the subjects that were addressed. Benson has written many other books that are worth buying, this is not one of them. Read Benson's other books to better understand the subject material, they covered their respective subjects in much more detail.