This field guide provides comprehensive identification and behavioral information for marine mammals worldwide. It is authored by Hadoram Shirihai, a renowned wildlife photographer and naturalist, and is designed for both amateur enthusiasts and seasoned researchers. The guide covers whales, dolphins, and seals, offering detailed descriptions, distribution maps, and insights into their ecology and conservation status. It aims to be an authoritative resource for understanding and appreciating these fascinating creatures.

This field guide is recognized for its detailed coverage and excellent photographic illustrations, making it a valuable resource for identifying marine mammals. Experts and enthusiasts alike have praised its comprehensive nature and the author's deep knowledge of the subject. The guide is considered a standard reference for anyone interested in the marine life of the world's oceans. Its practical approach and wealth of information contribute to its reputation as an essential tool for field observation and study.