City of Joy (পেপারব্যাক)

Living in the seeming hell of one of the poorest and most crowded quarters of Calcutta are the saints of today: saints such as Mother Teresa, saints such as Stephen Kovalski, an unkown Polish Catholic priest who made his home there to care for the poorest of the poor.
And Max Loeb, an American physician dedicated to fighting disease in this dirty hellhole.
City of Joy, the story of these saints, is a testament to the human spirit unbowed by the most wretched of circumstances.