آپتون سینکلر

Upton Beall Sinclair Jr. was an American author, muckraker journalist, and political activist, and the 1934 Democratic Party nominee for governor of California. He 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 1943 Pulitzer Prize for Fiction.