Comprehensive overview by Paul Garon of the Radical Novel in the first half of the twentieth century, based on Walter B. Rideout’s book, The Radical Novel in the United States:
[Rideout] defined the radical novel as “one which demonstrates, either explicitly or implicitly, that its author objects to the human suffering imposed by some socioeconomic system and advocates that the system be fundamentally changed.” The final clause is the most important, for many novelists sympathized with the victims of the system without advocating fundamental changes to the system itself.
A Practical Policy 