Classic work of military history and theory. According to Wikipedia: "Alfred Thayer Mahan (September 27, 1840 - December 1, 1914) was a United States Navy officer, geostrategist, and educator. His ideas on the importance of sea power influenced navies around the world, and helped prompt naval buildups before World War I. Several ships were named USS Mahan, including the lead vessel of a class of destroyers. His research into naval History led to his most important work, The Influence of Seapower Upon History,1660-1783, published in 1890."
Alfred Thayer Mahan was a United States Navy flag officer, geostrategist, and historian, who has been called "the most important American strategist of the nineteenth century." His concept of "sea power" was based on the idea that countries with greater naval power will have greater worldwide impact; it was most famously presented in his 1890 book The Influence of Sea Power Upon History, 1660–1783. The concept had an enormous influence in shaping the strategic thought of navies across the world, especially in the United States, Germany, Japan and Britain, ultimately causing the World War I naval arms race. His ideas still permeate the U.S. Navy Doctrine.
A collection of essays by Mahan of rather uneven quality. I've given it three stars for the simply reason that the first three fifths of the includes essays are clear offerings of the progressive imperialist intellectual tradition and the United States Navy's place in the diplomatic and political conceptualizations in progressive intellectuals and policy-makers of the era. The last part of the book are wordy essays centered on geopolitical minutiae.