"Descent Into Darkness– Pearl Harbor, 1941 A Navy Diver's Memoir" by Cdr. Edward C. Raymer, USN (Ret).
While everyone knows about December 7th, most are not aware of what happened at Pearl Harbor thereafter, which in itself is an amazing story.
In a nutshell, virtually every ship that was damaged and/or sunk was patched, refloated and restored except the USS Arizona and the USS Utah. And there were intentions and attempts to recover those ships also. The Arizona was found to be too badly damaged and the Utah was determined to be not of enough military value to spend a lot of effort on.
All the other battleships that were sunk/damaged were recovered. Only the USS Oklahoma was not fully restored.
Keep in mind up until this point in history, no one had successfully refloated ships of this size. The engineering involved was as much experimental as it was anything else.
The Naval Officer that wrote this book participated in the salvage effort on many of the ships, and his story is both interesting and heart-breaking, when one reads about diving on various ships and encountering the remains of sailors and marines. Not too mention he covers the loss of several divers who lost their lives in the salvage effort.
For me the most difficult part to read was the story of 3 sailors who were trapped on the USS West Virginia and due to the proximity of another battleship, the USS Tennessee, leaning on the West Virginia, no one could reach the section of the ship where they were trapped. They survived from December 7th until December 23rd (they maintained a calendar) until they finally ran out of breathable air.
When they were found a couple months later, it devastated the entire base.
A great read for anyone interested in the whole Pearl Harbor saga.