Become a whiz at spotting the Northern Lights. Learn where to look, when to look and the best techniques for seeing nature's spectacular light show! The author has created different classifications of the auroras, based on his own interpretations. Arc Auroras, Ray Auroras, Band Auroras and others are discussed in short blocks of text and shown in beautiful, full-color photos. So you'll learn to easily identify each type. This waterproof and tear-resistant guide tucks into your pocket and will quickly become an essential tool when you're out in the field.