I chose to write about food: food is inherently political, but it's also an essential part of people's real lives. It's where the public and private spheres connect. I wanted to show readers that the larger politics of war and economics and U.S. foreign policy are inextricably bound to the supposedly trivial details of our everyday lives.

But how can you understand a war without any knowledge of the society where it happens? It's like trying to understand birth without knowing anything about pregnancy or conception. Or like trying to understand our current economic collapse without knowing what a derivative is.

There were a hundred booksellers in the old round city founded by the eighth-century caliph al-Mansur. The café and wine-drinking culture of Baghdad has been famous for centuries; there was a whole school of Iraqi poets who wrote poems about the wine bars of medieval Baghdad - the khamriyaat, or wine songs, that I quote in the book.

The Middle East is the only region in the world outside of sub-Saharan Africa where rates of malnutrition actually rose over the past decade or two, instead of falling.

The problem is that so many of them are not getting told. This is a massive problem, not just in the Middle East but for places from Africa to Afghanistan. There are millions of stories out there, millions of potential Booksellers of Kabul or Valentino Achak Dengs.

But being an American woman married to an Arab guy - and a Muslim to boot! - put me in a different category. People would open up, and tell me things that they would never tell another journalist, no matter how persistent.

Part of the reason you see so little about this in the Western media is that Iraq was closed off from the outside world for so long under Saddam. But I think there's a deeper reason, which is that it messes with our assumptions - not just about Iraq, but about culture and human nature.