This handbook makes the case for Integrated Water Resources Management (IWRM) as a flexible tool when combatting water related challenges and the possibility of optimising water’s contribution to sustainable development. It gives countries the information they need to act on the recommendations of the World Summit on Sustainable Development (WSSD). It also deals with the basic concepts such as ‘Water and Sustainable Development’, the definition of ‘integrated’, the advantages of IWRM and the role of water efficiency. This handbook discusses the strategies that can be used by countries and the steps drawn to implement the plans and highlights in-depth analysis on the IWRM process. In this section the handbook looks at all aspects of the process, from the stakeholders to setting a timeframe and creating a knowledge base. This handbook gives the reader information on how to approach potential challenges and to ensure effective action. This handbook is a useful resource to any country working in developing IWRM and water efficiency strategies.