This is considered the definitive guide to underwater life in the Red Sea, Gulf of Aden and southern Oman. It covers corals, fishes, mollusks, nudibranchs, starfish, sea urchins, turtles and other marine life. Each species has full‑colour photographs, range/behaviour descriptions, and icons for quick reference; juvenile forms may also be illustrated. The book includes dive‑site maps (on inside covers) and is useful for divers, snorkellers, marine biologists and anyone interested in reef ecology in the Red Sea region.