The first edition of Frans de Wal's "Politics in Chimpanzees: Power and Sex in Primates" was well received not only by primatologists for its scientific achievements, but also by politicians, business leaders and social psychologists for their deep understanding of the most basic human needs and behavior of humans. A quarter of a century later, this book began to be considered a classic. Together with a new introduction outlining the author's freshest ideas, this anniversary edition contains a detailed description of the rivalry and coalitions among higher primates - actions guided by intelligence rather than instincts. By showing that chimpanzees act as if they have read Machiavelli, de Val reminds us that the roots of politics are much older than man. The book is addressed to a wide range of readers.