whats the best book (or website) on nutrition education?

aya619

I would like to know more and educate myself more about how carbs/fats/proteins work and what they do in the body and the ratios to eat at with them,etc. I have always wanted to take a class but unfortunately my schedule/life doesn't allow me to but I would like to read about it that simplifies it.
I know there are so many ways and books out there for specific diets, but I want something educational so I can decide for myself what would best for me.
We are also thinking about eating less processed food, more organic as a family so anything in that area would be good in addition to general nutritional information.
thanks!