Instruct: Classify Amazon reviews into positive or negative sentiment
Query: good

A good book that explains all that a patient needs to know about sexual impotence and nothing more. A book that is directly aimed at the target audience and offers nothing more then the minimum amount of information about impotence. For a much more improved book with lots of info on impotence and other sexual disorders look for" Volume II - Natural Penis Enlargement: New methods of avoiding and curing impotence, premature ejaculation, and erectile dysfunction safely and inexpensively. ... Book on CD-Rom for PC & Mac Computers" by Platinum Millennium