This is an excellent reference book, especially for the modeler who wishes to enhance his kit or scrath built model by building it as it would have appeared during a specific time period. Up until now I had no idea that there had been so many Gallery changes on this ship. And, that because it was a "war ship," and no one was thinking of making it into a museum some day, its Captains would update it with the latest equipment and change its appearance according to their particular needs and desires.One thing that changed every time it was rebuilt or updated, was the colors of any paints used. I wish the author had addressed that the best he could.All in all, a good purchase and a compliment to my ever growing nautical library.