Key Takeaways:

• Argues—in calm, devastating clarity—that animals’ suffering matters morally, and that dismissing their interests simply because they aren’t human is a prejudice as deep and unexamined as any other “-ism.”
• Exposes the cruelty of factory farms and laboratories with a reporter’s eye and a philosopher’s moral urgency, making hidden suffering impossible to ignore.
• Offers practical shifts—dietary, political, cultural—that ordinary people can use to reduce harm in the world.
• Became a lightning bolt for the modern animal-rights movement, shaping generations of activists, scholars, and anyone who has ever asked, “What do we owe the beings who share this planet with us?”