From the Publisher
"One of the greatest challenges for society in the 21st century is, without doubt, the sustainable management of water. This is true both for developed and especially, as the millenium goals clearly state, for developing countries. A goal which can only be achieved, as history has proven, by adapting solutions to existing conditions.
This constitutes in itself a powerful reason to devote the time to read this book, for it will allow the reader to learn how men and women have done, in every age, what the circumstances required at time. This is a lesson that, unfortunately, we need to learn again nowadays. This is a lesson taught masterfully by Pierre-Louis Viollet, an engineer in love with history, and particularly with those times in which mankind's creativity was most evident. Creativity which, in so many cases, is driven by need. Creativity which is closely related to water. After all, water is essential for human life."
—Prof. Enrique Cabrera Professor of Fluid Mechanics Universidad Politecnica de Valencia, Spain