17 Feb 2010

Bleg for good water books?

KG sends this from his library in India:
I am currently building up the section on "Water" at a public library in Pune, India - the Venture Center library. I have gone through all the book reviews on your blog, and have already bought/ordered some of those books.

Could you please recommend a few others?

Specifically, we are looking for books that define problems related to water, and talk about how innovation in technology or in business models may solve these problems.
Besides these "aguanomic" books, what others would you readers recommend?