Educate yourself, learn about what refugees face when they don't have homes, after they have lost everything.

But if you have a book that needs urgent reading,' she said, 'then Hakim is your man.

By then The Kite Runner had become quite successful and I found myself in a position that I had always dreamed of my whole life, which was to write for a living.

I was good at being a doctor; my patients liked me. At times people trust you with things they wouldn't tell their spouses. It was a real privilege.

When I went to Afghanistan in 2003, I walked into a war zone. Entire neighborhoods had been demolished. There were an overwhelming number of widows and orphans and people who had been physically and emotionally damaged; every 10-year-old kid on the street knew how to dismantle a Kalashnikov in under a minute. I would flip through math textbooks intended for third grade, fourth grade, and they would include word problems such as, "If you have 100 grenades and 20 mujahideen, how many grenades per mujahideen do you get?" War has infiltrated every facet of life.

That same night, I wrote my first short story. It took me thirty minutes. It was a dark little tale about a man who found a magic cup and learned that if he wept into the cup, his tears turned into pearls. But even though he had always been poor, he was a happy man and rarely shed a tear. So he found ways to make himself sad so that his tears could make him rich. As the pearls piled up, so did his greed grow. The story ended with the man sitting on a mountain of pearls, knife in hand, weeping helplessly into the cup with his beloved wife's slain body in his arms.

I entered the literary world, really, from outside. My entire background has been in sciences; I was a biology major in college, then went to medical school. I've never had any formal training in writing. So what I know about writing, I know from my own instincts, and whatever the narrative voice is in my own head.