This work investigates the complex ecological relationships and historical significance of coral reefs within the global marine environment. Jacques-Yves Cousteau, a pioneer in underwater exploration and marine conservation, utilizes his extensive field research and direct observations to document the fragile biodiversity of these underwater structures. The book presents a detailed argument for the necessity of protecting these ecosystems against the encroaching threats of human industrialization and environmental degradation.

The text is regarded as a foundational piece of popular science literature that bridges the gap between technical marine biology and accessible environmental advocacy. Its focus on visual evidence and firsthand exploration provides a clear, authoritative perspective on the state of the oceans during the late twentieth century.