Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A must for any naval collection

The Battleships trilogy by Garzke and Dulin is probably one of the most meticulously researched books on warships ever. The authors are naval architects and one of them is a former naval officer, so they know their subject inside and out. The drawings are certainly impressive and very useful to any modeler or historian of the subject.The projected designs of battleships never built by the major naval powers is a distinctive feature of this series and certainly interesting, considering that many of these designs were paper studies. The bibliography of the books show the tremendous research put in by the authors, who spared no effort in writing to eminent naval researchers abroad. A must buy!