I don't understand "animal people" who say they are not environmentalists. Do they not realize that the vast majority of animals live in the environment?

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.

Remember that veganism is a compassionate lifestyle not a punitive religion. Enjoy it! And if the going gets rough, it's better to relax the rules occasionally than to give up the game entirely.

Some of us seem to be born with a drive to try to make the world kinder. In my twenties, living in New York City, I worked in a soup kitchen every Sunday for many years, just trying to do my part. Then I read Animal Liberation and learned about factory farming and the killing of animals for oven cleaner and realized nobody needed my help as badly as the animals did.

When I see vegan food sold in single-use plastic containers, I get frustrated knowing that plastic is not really recycled; it is down-cycled to less and less reusable grades, and too much of it eventually ends up in the ocean - where it kills animals. Caring for animals means caring for the environment they live in, and vice versa.

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.

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.