One of our members, John Dracup, has a new book out: 'Clean water for Developing Countries' https://www.cleanwaterbook.com/.
John Dracup was born and raised in Seattle, Washington, where his parents settled because the climate reminded them of their native Glasgow, Scotland. He is a civil engineer and hydrologist. He holds degrees in Civil Engineering from the University of Washington, Seattle, the Massachusetts Institute of Technology, Cambridge and the University of California, Berkeley. In 2001, he was a Fulbright Scholar to Australia. He has taught water resource engineering and hydrology at both the University of California, Los Angeles and the University of California, Berkeley for over 50 years.
If you want your own copy of the book it's available on 39,000 sites including major sellers: