1. The Silent World — Jacques Cousteau and Frederic Dumas (1953)
The book that preceded the film. Cousteau's account of the early Aqualung expeditions in the Mediterranean and Red Sea; more reflective and personal than the film, with detailed chapters on the experience of breathing underwater for the first time and the discovery of the Thistlegorm.
2. The Living Sea — Jacques Cousteau and James Dugan (1963)
The Calypso expeditions at greater length; the Conshelf underwater habitat experiments where men lived on the seafloor for extended periods; Cousteau's increasing concern about what was being done to the ocean he was documenting.
3. Neutral Buoyancy: Adventures in a Liquid World — Tim Ecott (2001)
A travel narrative structured around learning to dive and pursuing the experience across the Indian Ocean, Red Sea, and Pacific. Well-written, honest about the uncomfortable economics of diving tourism, and excellent on the marine biology of specific sites.
4. Shadow Divers — Robert Kurson (2004)
The story of two New Jersey technical divers who discovered an unknown German U-boat off the Atlantic coast in 1991 and spent years identifying it. Compulsively readable; excellent on the culture and psychology of technical wreck diving.
5. Beneath Truk Lagoon — Klaus Lindemann
The definitive guide to the wrecks of Chuuk (Truk) Lagoon — their histories, the Operation Hailstone attack, and the individual dive sites. Exhaustively researched; indispensable if you're planning a Truk trip.
6. Into the Blue — Simon Pirani (2017)
A guide to freediving psychology and breath-hold training. Excellent on the mental dimensions of breath-hold — the management of CO2 sensitivity, the relaxation techniques, the paradox of needing to relax under genuine physical stress.
7. Fathom: An Ocean Alliance — Meera Subramanian (2022)
A recent narrative on ocean conservation, marine protected areas, and the scientists, local communities, and NGOs working on ocean sustainability. Well-reported, global in scope, and honest about what works and what doesn't in marine conservation.
8. The Shark Whisperer — Erich Ritter (2014)
Controversial figure, but Ritter's work on shark body language and diver-shark interaction has influenced how guided shark dives are conducted. Worth reading with the biographical context in mind.
9. Sea of Slaughter — Farley Mowat (1984)
A historical account of the marine megafauna that once existed in the northwest Atlantic and the commercial hunting that eliminated them. Essential reading for context on baseline abundance — what a pristine ocean looked like before industrialscale extraction.
10. Coral: A Pessimist in Paradise — Steve Jones (2007)
A geneticist's account of coral biology, evolution, and the biological mechanisms that make reefs both extraordinary and vulnerable. Academic but accessible; the chapters on coral genetics and bleaching physiology are among the best popular-science explanations available.