Yes, John Steinbeck's novels gained significant popularity upon their publication, in part because they portrayed the struggles and experiences of the working class. Steinbeck's works, such as "The Grapes of Wrath" and "Of Mice and Men," resonated with readers during the Great Depression and the economic challenges of the time. His ability to vividly capture the hardships, aspirations, and resilience of everyday people helped to strike a chord with a wide audience.
Furthermore, Steinbeck's social consciousness and advocacy for the disenfranchised added depth and relevance to his narratives, making them not only popular but also influential in American literature and social thought. His portrayal of social issues and the plight of the working class reflected the realities of his time, which contributed to the lasting impact and popularity of his works.