First of all, let me say that I've read every book that Erik Larson has written and so enjoyed each of them. In Dead Wake one of the fascinating things I learned were the many details about the workings of a submarine and the lives of the men (and now women) who serve on them. I found these details engrossing and myself shuddering as I read the conditions under which the crews lived and served. Great research and I'm so glad Larson shared those details with his readers.