I am a vegetarian for 12 years and think of going vegan. To make an informed choice, I bought this book and read it cover to cover (only with the exception of child nutrition and pregnancy as it does not apply to me) in 5 days - I just could not put it down!
This book has a great emphasis on nutrition, examines studies nutritional values of food, but also tips on animal right and environmental issues of vegetarianism and veganism.
I actually thought I knew a lot about nutrition but, even as it has been written back in 2000, this book gave me a whole lot of nutritional info which I was not aware of, ie. how to chose the good fats, why a vegan diet is so much healther than even a lacto ovo vegetarian and how to make the steps, how to shop, etc.
If you are concerned about your diet and want to be really informed about good nutrition, this is the book for you!