The present book consists mainly of chapters on the theory of the AHP/ANP and their application in solving various economic, managerial, and organizational problems. Two chapters report on other methods. It has been grouped into five parts, namely: (1) Theoretical and methodological aspects of the AHP/ANP; (2) Application of the AHP in Solving Economic, Organizational, and Management Problems; (3) Application of the AHP in connection with other methods; (4) Application of the ANP in Solving Economic, Organizational, Social, and Political Problems; (5) Other multicriteria methods. A broad variety of the presented problems and their effective and efficient solutions clearly indicate that these methods are rapidly developing, offering new, interdisciplinary research perspectives. It also shows that the presented research area is far from exhaustion and should be continued in the future.