The liberation of animals is the liberation of people. Peter Singer is one of the most authoritative philosophers of our time and the person who was the first in the world to talk about the ethical treatment of animals. His book Animal Liberation was published in 1975, revolutionizing the minds of millions of people around the world. After 45 years, it has not lost its relevance. Time magazine included it in the list of the hundred most important popular science books of the last century. Human relations with animals are built on prejudices. The same prejudices cause people to look down on members of a different gender or race. The problem is that animals cannot protest against cruelty. By exposing the horrors of factory farming and the exploitation of laboratory animals for commercial and scientific purposes, Peter Singer exposes society's ethical blindness and offers sensible and humane solutions to this moral, social and environmental problem. Animal Liberation raises ethical questions that everyone should consider. . Perhaps not everyone will accept Singer's ideas. But given the enormous power that humanity has over all other animals, it is our ethical responsibility to discuss the issue thoroughly." - Yuval Noah Harari