John Steinbeck explored various themes in his novels. For instance, he focused on the plight of migrant workers, the power of hope in difficult circumstances, and the influence of the environment on individuals. His writing aimed to shed light on the challenges and dreams of ordinary Americans.
Steinbeck's novels typically touched on themes such as social injustice, the search for the American Dream, and the harsh realities of rural life. His works also delved into the complexity of human nature and relationships.