Check out borders bookstore. They always have different cultural cook books on sale for like $10. It comes with many good pics on food photography, the way the dish is positioned, etc. Good reference books.
A thing about food photography is... food dun necessary look the nicest when it's fully cooked. And a lot of things you see in food photography aren't really edible either. I've seen some tv shows where they put lacquer on roast meat just to get the gloss on the surface.