Upton Sinclair 
The Profits of Religion 

Upton Sinclair was a prolific American author who won the Pulitzer Prize for Fiction in 1943.  Sinclair wrote many well known books across different genres but his most famous is The Jungle, an influential novel that caused a public uproar and led to the Meat Inspection Act in 1906.   This edition of The Profits of Religion includes a table of contents.