Animal Liberation Now

The Definitive Classic Renewed

Peter Singer

368 pages revised Manuscript in English Philosophy

Updated for the first time in nearly 50 years, this mainstay of the animal rights movement includes the most recent information about humanity’s relationship to animals, including the explosion of factory farming worldwide, and why our cruelty towards them persists.

One of the most influential books of the past half century, Peter Singer’s Animal Liberation has only grown in relevance and popularity since its original publication in 1975. Named one of Time magazine’s “All-Time 100 Best Nonfiction Books,” this groundbreaking work has awakened millions to “speciesism”—humans’ systematic disregard of nonhuman animals. Singer inspired a worldwide movement, transforming our careless attitude toward animals and helping to reduce and hopefully eliminate the cruelty we inflict on them. In Animal Liberation, Singer exposes the chilling realities of today’s factory farms and product-testing procedures, destroying the spurious justifications behind them and exposing just how woefully we have been misled.

Now, in this updated edition—revised from top to bottom—Singer brings us to the current moment, covering important reforms in the European Union and individual U.S. states. But he shows us how these measures are offset by the explosion of factory farming caused by unprecedented demand for animal products in China. Singer also explores how meat consumption is negatively impacting the earth, and reveals how factory farms pose a profound risk for spreading new viruses worse than Covid-19. In addition, Singer offers alternatives we can use to address this profound environmental, social, and moral issue.

With an introduction by Yuval Noah Harari, author of Sapiens.


Audio: Tantor; NA English Print: HarperPerennial; English E-Book rights: Open Road;Estonia: University of Tartu Press;France: Payot;Germany: Harald Fischer Verlag;Hindi: Manjul Publishing House;Hungary: Oriold & Co. Publisher;Iceland: Portfolio Publishing;Italy: il Saggiatore;Japan: Jimbun Shoin;Korea: Yeonamseoga;Lithuania: UAB Kito Knygos; Poland: Wydawnictwo Marginesy;Portugal: University of Lisbon Press;Russia: Sindbad;Slovakia: Hroinka;Spain: Taurus;Swahili: Mkuki na Nyita Publishers;Thailand: Suan Nguen Mee Ma;Turkey: Ayrinti Yayinlari;UK: Bodley Head;Ukraine: Pabulum Publishing


“I became a vegetarian when I read Animal Liberation back in the 1970s. I’d been in the field since 1960 and didn’t know about factory farms. I was horrified. The next time I saw a piece of meat on my plate, I thought – this symbolizes fear, pain, death. Then and there I stopped eating meat.  If I’d read this revised Animal Liberation Now I’d have become a vegan much sooner.” — Jane Goodall

“In its first incarnation, Animal Liberation became the indispensable foundational text for the movement whose name it bore. In its new, updated, and wholly rewritten form, Animal Liberation Now provides not only a survey – sober, authoritative, and chilling – of what goes on today in the factory farms and research laboratories of the world, but also a guide, written with the honesty and philosophical depth characteristic of all of Peter Singer’s work, through the complexities of the modern debate on animal rights.” — J.M. Coetzee, author of The Lives of Animals and Disgrace

“Peter Singer may be the most moral person on the planet. If his ruthlessly consistent altruism makes the rest of us shuffle our feet in discomfort, or even noisily disrupt his lectures, that’s all the more reason to read this book.” — Richard Dawkins, Fellow of the Royal Society, author of The Selfish GeneThe God Delusion, and The Ancestor’s Tale

“Widely recognized as the foundational text within the animal liberation movement, Peter Singer’s Animal Liberation opened my eyes to the radical philosophy that all animals are worthy of equal consideration. Singer’s latest, Animal Liberation Now, will motivate a new generation of readers who are resolutely committed to creating a just society for all.” — Joaquin Phoenix