Progressive authors are writers who advocate for social reform and change through their works. They often address issues such as social justice, equality, and environmental sustainability, aiming to inspire readers to think critically about societal norms and injustices. Their literature frequently reflects the struggles of marginalized groups and promotes progressive values. These authors can be found across various genres, including fiction, non-fiction, and poetry. Notable progressive authors include Upton Sinclair, known for his critique of the meatpacking industry, and Toni Morrison, who explored themes of race and identity. Their contributions have significantly influenced public discourse and cultural movements.