The Jungle is a novel written in 1904 by the American journalist and novelist Upton Sinclair (1878-1968). Sinclair wrote the novel to portray the harsh conditions and exploited lives of immigrants in the United States in Chicago and similar industrialized cities. His primary purpose in describing the meat industry and its working conditions was to advance socialism in the United States. However, most readers were more concerned with several passages exposing health violations and unsanitary practices in the American meat packing industry during the early 20th century, which greatly contributed to a public outcry which led to reforms including the Meat Inspection Act. Sinclair famously said of the public reaction, "I aimed at the public's heart, and by accident I hit it in the stomach."
Upton Beall Sinclair Jr. was an American writer who wrote nearly 100 books and other works in several genres. Sinclair's work was well known and popular in the first half of the 20th century, and he won the Pulitzer Prize for Fiction in 1943.