《孙子兵法》，即《孙子》，又称作《武经》、《兵经》、《孙武兵法》、《吴孙子兵法》，是中国古代的兵书，作者为春秋末期的齐国人孙武（字长卿）。一般认为，《孙子兵法》成书于专诸刺吴王僚之后至阖闾三年孙武见吴王之间，也即前515至前512年，全书为十三篇，是孙武初次见面赠送给吴王的见面礼；事见司马迁《史记》：“孙子武者，齐人也，以兵法见吴王阖闾。阖闾曰：子之十三篇吾尽观之矣”[1]。《孙子兵法》是世界上最早的兵书之一[2]。被奉为中国兵家经典[3]，后世的兵书大多受到它的影响，对中国的军事学发展影响非常深远。它也被翻译成多种语言，在世界军事史上具有重要的地位的著作。

全书共分十三篇，主要论述了军事学的主要问题，对当时和现在的战争经验进行了总结，提出了一些著名的革命性军事问题，并且揭示了一些具有普遍意义的军事规律。

1. 始计第一（原篇名应作“计”）
2. 作战第二
3. 谋攻第三
4. 军形第四（原篇名应作“形”）
5. 兵势第五（原篇名应作“势”）
6. 虚实第六（原篇名应作“实虚”）
7. 军争第七
8. 九变第八
9. 行军第九
10. 地形第十
11. 九地第十一
12. 火攻第十二
13. 用间第十三

Clausewitz had many aphorisms, of which the most famous is, "War is not merely a political act, but also a political instrument, a continuation of political relations, a carrying out of the same by other means," a working definition of war which has won wide acceptance.

First published almost a century ago, this classic text on the history and tactics of naval warfare had a profound effect on the imperial policies of all the major powers. Kaiser Wilhelm is said to have "devoured" this book, and it was avidly read by presidents (including both Roosevelts), kings, prime ministers, admirals, and chancellors.
This book was the work of noted U.S. naval officer and historian Alfred Mahan (1840–1914), who argued that despite great changes and scientific advances in naval weaponry, certain principle of naval strategy remain constant, and nations ignore them at their peril. Credited with stimulating the growth of modern navies in leading countries of the world, the text remains a basic authority on the strategy of naval warfare and is still used in the war colleges.
Demonstrating through historical examples that the rise and fall of seapower (and of nations) has always been linked with commercial and military command of the seas, Mahan describes successful naval strategies employed in the past — from Greek and Roman times through the Napoleonic wars. Focusing primarily on England's rise as a sea power in the 18th century, the book provides not only an overview of naval tactics, but a lucid exposition of geographical, economic, and social factors governing the maintenance of sea power.
The work is carefully written and exceptionally well-documented; moreover, the author's clear, well-thought-out text avoids technical language, making it accessible to a nonprofessional audience. In addition, four maps and a profusion of plans of naval battles help the reader grasp the strategy and tactics involved in some of the history's greatest maritime conflicts. In this inexpensive edition, the book represents an indispensable sourcebook for statesmen, diplomats, strategists, and naval commanders as well as students of history and international affairs. Although ships, weapons, and the global balance of power have altered greatly since 1890, the lessons taught here so vividly and compellingly are still applicable today. Includes 4 maps, 24 battle plans.