northcoast_diver
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My suggestions would be the NAUI Master Diver Manual or the PADI Encyclopoedia of Recreational Diving. Those are beginner level.
The NOAA Diving Manual does have a large portion of history in it, but it is of most benefit to Nitrox certified divers, stage deco divers, altitude divers, or trimix divers.
The NOAA Diving Manual does have a large portion of history in it, but it is of most benefit to Nitrox certified divers, stage deco divers, altitude divers, or trimix divers.