"Victims of Mind: Why Animals Suffer and Why We Don't Care" (1989): This is his most famous work, considered a seminal text in animal rights philosophy. It explores the concept of "speciesism" and argues that animals are deserving of moral consideration.
Other notable works include:
* "Animal Revolution: Changing Our Relationship with Animals" (1992)
* "The Morality of Killing" (1985)
* "Speciesism and Moral Obligation" (2011)
* "Animal Rights: A Very Short Introduction" (2011)
Ryder has also contributed numerous articles and essays to academic journals and popular publications on animal rights and related issues.