Mostly, I make sure to stay keenly aware of my own shortcomings so that I am more patient with others. It can be hard to see a friend order a cow-milk latte when almond or soy milk is available, knowing that the friend knows what dairy cows go through, how they mourn their babies, who have been carted off to veal crates so that we can steal their milk.

Giving into anger destroys the soul.

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.

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.

Once people learn, it is hard to forget and go back.

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.