Perspectives are different frameworks from which to explore the knowledge around sustainable sanitation and water management. Perspectives are like filters: they compile and structure the information that relate to a given focus theme, region or context. This allows you to quickly navigate to the content of your particular interest while promoting the holistic understanding of sustainable sanitation and water management.
This factsheet is good to get an idea on PPPs. It offers a list of further reading material, and includes tips for the preparation of a PPP.
KHAN, S. COTTON, A. (2003): Public Private Partnerships and the poor in water supply projects. Leicestershire: Water, Engineering and Development Centre (WEDC) URL [Accessed: 11.04.2019]