Analysis of the book 'Animal Liberation' written by Peter Singer, who is probably the most famous academic advocating for the need to avoid animal suffering. In 1975, he published Animal Liberation, an essential book to change the world-wide consciousness about subjects including eating meat, the cruelty faced by non-human animals (the term that he uses) in the factory farm, the need to become vegetarians, and the historical explanation of why humans tend to be speciecists.
