Upton Sinclair, Jr. (1878-1968), was a Pulitzer Prize-winning American author who wrote over 90 books. He achieved popularity in the first half of the 20th century, most famously for his 1906 muckraking novel The Jungle.
Upton Sinclair, Jr. (1878-1968), was a Pulitzer Prize-winning American author who wrote over 90 books. He achieved popularity in the first half of the 20th century, most famously for his 1906 muckraking novel The Jungle.