'The Butterfly Book' by William Jacob Holland is the ultimate guide to collecting and identifying butterflies of North America. Holland's book is a comprehensive and well-illustrated manual that allows amateur collectors to name, identify, and classify their specimens accurately. Unlike European counterparts, the United States and Canada lack a practical and illustrated manual, and Holland's book fills that void. Holland's own experience and vast collection of North American butterflies have given him the knowledge to write a popular guide that includes a multitude of species never before delineated. Whether you are an avid collector or just starting, 'The Butterfly Book' is a must-have for anyone interested in insect life and preserving the beauty of these creatures.