This introductory field guide is designed for the beach explorer, the boater, the skin diver, and the scuba diver. Rick has limited its contents to the most common species, which can be seen from, or along, the seashore, or in the shallows. Rick has limited its contents to the most common species, which can be seen from, or along, the seashore, or in the shallows. It's easy-to-spot features will guide the beginner into the wonderful world of the western seashore.