Some people feel that humans have a right to eat other animals but not to trash the earth. They may choose veganism because a vegan's ecological footprint is light, but once they are not invested in eating animals, they are more likely to be willing to learn the details of what happens to them. That learning will encourage compassionate people to stick with a plant-based diet.

Many people will first be attracted to veganism for their health but find themselves far more open to learning about the animal issues when they don't have to block them out three times a day in order to enjoy eating. Then once people learn, it is hard to forget and go back. Come for the body, stay for the soul.

Animal rights is a serious subject, but I do my best to find humor where I can, and I have some great help: there are almost two hundred cartoons included in the book, including dozens from the brilliant Bizarro strip.

I met my first turkey at an animal sanctuary in 2000. The sanctuary owner brought out a turkey named Olivia who had been rescued from a factory farm. As I sat on the grass and reached out to pet her, she climbed into my lap and fell asleep. I was flabbergasted and charmed.

Indeed, a report from the United Nations has revealed that the livestock industry is the number-one contributor to global warming gasses - higher than even the transport industry. Plus, the effect of the livestock industry on our waterways and oceans is disastrous.

Seriously, many people have told me they can't eat turkeys anymore after getting to know them. I think in the wider world, when the stories air on the media, they help banish the idea that birds, other than parrots, are somehow lesser.

I try to meet people where they are.