Communication is at the heart of all religions. As an essential aspect of religion, communication occurs between believers, between religious leaders and followers, between proponents of different faiths, and even between practitioners and the deities. The desire to communicate with as well as convert others is also an aspect of some of the world's major religions.

The Art of War (Chinese: 孫子兵法) is a Chinese military treatise written during the 6th century BC by Sun Tzu. Composed of 13 chapters, each of which is devoted to one aspect of warfare, it has long been praised as the definitive work on military strategies and tactics of its time.
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Freud A to Z
A lively guide to the life and work of the father of psychoanalysis.
From Anna O. to Zionism, this uniquely accessible A-to-Z reference presents a comprehensive overview of Freud's ideas, family, colleagues, patients, writings, and legacy. Mixing humor, passion, and knowledge, each of the more than 100 fascinating entries offers a revealing look at some aspect of Freud's world, be it a description of his famed pillowed office at Berggasse 19 or an account of his intense feud with former student Carl Jung.