A portable, comprehensive field guide to North American butterflies-- brimming with concise descriptions and stunning color photographs, and designed to fit into your back pocket--from the go-to reference source for over 18 million nature lovers. This streamlined volume contains: a simple field guide identifying 80 of the most widespread butterflies in North America and a complete overview of observing butterflies, covering basic identifying field marks and practical tips for observing and distinguishing different butterflies. This pocket guide is packed with information; bright photographs capturing the butterflies perched with their wings spread and closed; specific descriptions of each species' important identifying characteristics, life cycle, habitat and range,