Novelist and playwright of the Realist School of Chicago, took the critical social and political ideals of the struggle testimonial fiction.

Author of more than a hundred books, Upton Sinclair was released through The Jungle (1905), although he wrote many other novels of social and political issue, and several studies in support of the ban or against the press, the truth is that none had the success of his first novel. In his famous collection of eleven novels about Lanny Budd, a secret agent wealthy involved in major international events include The World's End (1940) and The Dragon's Teeth (1942), dealing with Nazi Germany and was awarded the Pulitzer Prize in 1943.