This book is directed at those who eat meat and argues veganism is the only ethical and acceptable way of eating. In Why We Love Dogs, Eat Pigs, and Wear Cows, Joy investigates factory farming, exposing how cruelly animals are treated, the hazards meat-packing workers face, and the environmental impact of raising 10 billion animals for food each year for meat, eggs and milk. Social psychologist and vegan, Melanie Joy explores the many ways we numb ourselves and disconnect from our natural empathy for farmed animals. She coins the term "carnism" to describe the belief system that has conditioned us to eat certain animals and not others.