Are you talking fiction? Or are you looking for a reference? Or a tightly written book on a specific topic?
You've gotten a bunch of titles already: Deco for Divers is quite simply the ONLY good, thorough and accessibly written reference on decompression theory for the general diver.
Six Skills is both beautifully (and wittily) written, and has a lot of information to digest, and although it was not written primarily for the recreational diver, it has much food for thought for any of us.
A broader reference, and written for a less intense sort of audience, is the PADI Encyclopedia of Recreational Diving. It contains information on topics ranging from the great ocean currents to how regulators work. It's easy reading and designed to be done in chunks, so you can store it in the bathroom and absorb it in ten minute pieces.
Clay Coleman wrote The Certified Diver's Handbook, and although some of it is dated and I don't agree with everything in the book, there is a wealth of information on just the kind of thing the new diver isn't well prepared for. When I finished my OW, for example, I'd never heard of a granny line or a tag line . . . practical information on how to go about a variety of dives is what this book is good for.
And if you want to challenge your ideas and confront a different approach to diving, consider Doing it Right: The Fundamentals of Better Diving by Jarrod Jablonski. Again somewhat dated and in need of better editing, it still has some very interesting ideas which are worth some thought.
On the other hand, if you're looking for entertaining books about diving, I think most folks would agree that the best fiction/semifiction about scuba is Shadow Divers. This book works even for the non-diving family member. It's well written, filled with suspense, and has very human characters. The story is a true story, although there is argument about the details.
There are many books written about the Andrea Doria, including The Last Dive by Bernie Chowdury, who dove on many of the trips recounted in Shadow Divers. Not as well written as the former book, it is in some ways more gripping, as it is written by a diver.
If you are more interested in reef diving and ocean life, consider Neutral Buoyancy, which is the story of a year and a half in the life of a very introspective dive bum. There are some great lines in the book, and I often quote some of them.
Lots of diving reading out there . . . It just depends on what you had in mind.