Havana's Instituto de Filosofia's First Biennial International Seminar on the Philosophical, Epistemological and Methodological Implications of Complexity Theory, was held in January 2002 in Havana, Cuba's capital city. The seminar was aimed at familiarizing Cuban researchers and professors in a more direct way with some of the current trends - and widespread scope - of the expanding field of complexity thinking, affording them the possibility of personal contacts with some of the people engaged in that effort. The seminar was attended by specialists from fifteen countries, ranging from Chile to Australia along the West-East axis, and from Norway to South Africa along the North-South one. There were participants from developed and underdeveloped countries. This book contains selected papers from the 'Complexity 2002' seminar, edited by Fritjof Capra (author of 'The Tao of Physics', 'The Web of Life: A New Scientific Understanding of Living Systems' and 'The Hidden Connections: A Science for Sustainable Living'), Alicia Juarrero (author of 'Dynamics in Action'), Pedro Sotolong, and Jacco van Uden (author of 'Complexity and Organization'). The papers have been organized in four parts: I. Sources of Complexity: Science and Information; II. Philosophical, Epistemological and Methodological implications; III. Organizational Implications; IV. Global and Ethical Implications. The papers in Part I can be said to approach the phenomenon of complexity at a very basic level. Here the issues being addressed revolve around the very fundamental question of why the complexity sciences are so important: What are the most fundamental lessons to be learned from studying complex systems? Papers included in Part II engage in a broader, philosophical investigation of some of the most general ontological, epistemological and methodological implications of the complexity approach, showing how very old questions are currently being reformulated and/or reinterpreted in the light of co