"The topic of the law governing freshwater protection and international watercourses has already been the subject of extensive research and commentary by leading academics and practitioners in the field of international law. It is due to their solid contributions - having commented widely and comprehensively on the international watercourses law regime and its applicability on shared watercourses - that the field of international watercourses law has pragmatic relevance to river basin treaties, agreements and arrangements. This book has benefitted from the teachings and rich analyses of these commentators and builds upon their significant contributions to this field. International watercourses law has been discussed, debated and documented at numerous international fora in modern times leading to the codification of international rules and regulations governing transboundary watercourses, and the various commentaries on its interpretation and application"-