Jack London 
People of the Abyss [PDF ebook] 

The beloved author of such works as The Call of the Wild, White Fang, and The Sea Wolf turns his keen eye to social realism in The People of the Abyss. In this fascinating volume, Jack London recounts his first-hand experiences living in the slums of the city that bears his name. Read the non-fiction account that brought world-wide attention to the appalling conditions facing England’s working poor in the early twentieth century.