DAVID NIBERT: Animal Rights/Human Rights 

Offers a new look at the history of western civilization, one that brings into focus the interrelated suffering of oppressed humans and other animals. Nibert argues that the oppression both of humans and of other species of animals is inextricably tangled within the structure of social arrangements. Nibert asserts that human use and mistreatment of other animals are not natural and do little to further the human condition.

Historically grounded, and passionately argued, Nibert's theory contends that oppression is primarily underpinned by economic gain and supported by state ideology. His scholarship offers both an economic analysis of oppression, including animal oppression, and a strong call for socialism. Beyond simply considering the roles animals have played within human society, significantly, Nibert also attempts to account for animals' experiences and perspectives throughout history.
Animal Voices

The exploitation of other animals and the justification of their mistreatment not only closely resemble human oppression but are inextricably tied to it. While the primary focus of this book is human oppression of other animals, the thesis is that such oppression is motivated primarily by economic interests and, what is more, that it is profoundly and permanently entwined with human oppression of other humans. Passage out Animal Rights/Human Rights: Entanglements of Oppression and Liberation.