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.

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.

It is important to meet people where they are. It reminds me of yoga, to which people may flock for the physical benefits, often to find that the spiritual benefits match or even outweigh them.

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.

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.

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.

Come for the body, stay for the soul.