Author of The French Explorers, The Crusaders and The World of Marco Pole uses the same expository style in describing how and why King Philip of Spain assembled the greatest invasion fleet of that time in order to conquer England in a decisive victory. Descriptions of the techniques of 16th century warfare,- the carracks, galleons, galleys, and store ships are seen in representational drawings. How the tables turned, resulting in the subsequent lordship of the seas by Great Britain and the decline of Spanish maritime leadership, how such men as Drake, Hawkins and Howard moved history tells the full story of an amazing victory. It is competent and clear.