The Sustainable Sanitation and Water Management Toolbox recognizes that sectoral approaches are not going to solve the global water and sanitation crisis. It highlights that we need holistic approaches and must consider the entire water cycle from source to sea, and back, and puts human influence on the water and nutrient cycle at the centre. But what are such holistic approaches? What is understood by Integrated Water Resources Management? And what does Sustainable Sanitation actually mean? And how do we link the two, and bring in agriculture into the play?