Instruct: Classify Amazon reviews into positive or negative sentiment
Query: The "Bible" for the sport

This is a great book if you are a novice, intermediate or advanced spearo. The information on gear is clear and concise, especially in regards to rigging your gun. The chapters on the various types of pelagic fish that are hunted is thorough and informative. Dr. Maas writes not so much as a person that did a lot of research, but more importantly as a person who has experience in the areas he is writing about. His first hand accounts are entertaining and educational.This book is a must have for anyone in this sport. It will want to make you get in the water.