Behind The Beautiful Forevers sheds light on those striving for their survival and humanity while fighting against corruption in the Annawadi slum of Mumbai, India.

Mumbai is one of the world's biggest and most complicated cities. It boasts luxury, Bollywood, and a higher income per capita than the average Indian city. But it also contains some of the greatest areas of poverty in the country.

The Annawadi slum is home to 3,000 people on a small patch of swampy land near Mumbai airport.

Hiding them from the view is a large concrete wall that borders the airport. The people here live in devastating poverty.

Pulitzer-prize-winning journalist Katherine Boo spent more than three years here. In her book Behind the Beautiful Forevers: Life, Death, and Hope in a Mumbai Undercity, she gives us a glimpse into this area and the people who live there.