The clearest and sharpest recognition guide to over 500 species of seashells from around the world. Authoritative text, crystal-clear photography, and a systematic approach make this the most comprehensive and concise pocket guide to seashells of the world. Packed with more than 600 full-color photographs of over 500 species of seashells, this handy reference book is designed to cut through the complex process of identification and make it accessible to the average reader.