The sociopolitical issues that influenced the writings of John Steinbeck, author of "The Grapes of Wrath," include the effects of the Great Depression and Dust Bowl. Steinbeck's works often address the struggles of dispossessed and marginalized Americans, portraying the harsh realities of poverty, migration, and social injustice. "The Grapes of Wrath" particularly depicts the plight of the Joad family as they journey from Oklahoma to California in search of a better life. Steinbeck's compelling narrative style and empathy for his characters highlight the broader struggles of the working class, making his works a poignant commentary on American society during tumultuous times.