I am glad I read this book again cover to cover. I found Chapters 3 - 8 useful (who said what and why it matters, the constituents of seapower, navies and technology, command of the sea and sea control, securing command of the sea, and exploiting command of the sea). Chapters 3 and 4 were especially useful to me. Overall, this book is useful for those interested in strategy, military and naval history, and the future of the sea.