Her focus is Annawadi, a squatter settlement in the shadow of Mumbai's gleaming international airport, bordered by a sewage lake that Boo swims in to better understand the toxic environment.
Here, scavengers return home at night "with gunny sacks of garbage on their backs, like a procession of broken-toothed, profit-minded Santas", while the police officers "would gladly blow their noses in your last piece of bread".
We meet Abdul, a scrawny teenager whose garbage trading supports his family of 11. What happens after he and his relatives are wrongly accused in the beating and burning death of a troubled neighbour forms the suspenseful narrative at the heart of the work.
Others have written about the disease and corruption of India's slums, where poverty is so grinding that some subsist on fried rats and frogs and the scrub grass growing beside the sewage lake.
But Boo sticks with her characters long enough to reveal their humanity. Her portraits of Abdul and other Annawadians reveal the intelligence, courage, and integrity underneath the dirt and the rags.
Title: Behind the Beautiful Forevers
Author: Katherine Boo,
Publisher: Scribe Publication, $34.99