People have been ice fishing for thousands of years on frozen lakes, ponds, streams, and rivers.  Although not a dangerous sport, ice fishermen need to know how to be safe.  A variety of equipment measures ice thickness, drill holes, and attract fish.  Some people take tents or small houses out on the ice to protect them from cold wind.  Some even provide heat and other comforts.  Insulated clothing is a must, as well as rescue gear in case of an accident.  Ice anglers clean up after they leave and mark abandoned holes so others will be safe.  Minnesota is a popular ice fishing state because of its cold winters and thousands of lakes and streams.  This short book gives very basic information but does not go into much detail.  Photographs are large and a good match to the text.  Some photos also have labels.  Words to know are in bold, red font and are defined in the glossary.  The layout is pleasing.  Many pages have additional facts.