Just recently got this book about Bismarck from Osprey Publishing:
Also if you want a good book about the Bismarck, I can recommend Battleship Bismarck: A Design and Operational History which was released a few months ago.
A highly detailed book that tells the whole story of the Bismarck in minute detail and even includes pictures of the wreck from James Cameron and a detailed analysis of how H.M.S. Hood was destroyed.
There are two downsides to this book;
First: Weight; it weighs a shade over 3 kg so you wouldn't want to lug this about all day.
Second: Cost; I got my copy for about €65.
However despite these two issues, I'd highly recommend this book for anyone interested in the Bismarck story.