In a series of chronological chapters, Submarines describes key developments in diving ability, underwater endurance, and weapons capabilities in specific periods, while highlighting strategic and operational innovations; the role of technological research; famous submarine events, battles, and commanders; and the impact of submarine services on naval society. The book also includes an illustrated reference section covering every submarine class worldwide since 1900. This coverage plus additional reference features make Submarines an essential introduction to a weapons system that has long held the public's imagination.