Dive Atlas of the World: An Illustrated Reference to the Best Sites

Rating:
Summary: Nicely illustrated overview of dive sites of the world
Review: Coffee table book. Nicely illustrated and informative listing and overview of dive sites of the world. Lots of vacation ideas, including some I wasn't aware of before.
Good motivation for new divers as well.

Then, once you're inspired to take your next dive vacation, consult one of the travel guides:

Aqua Quest Diving series
Globetrotter Dive guides
Lonely Planet Pisces Diving & Snorkeling Guides
Periplus Action Guides (Asia/Pacific)