As with most of my work, I started from the abstract, from research, building an intellectual model that slowly became internalized when the characters came alive. It's fascinating what happens to the model you've so assiduously assembled when characters are allowed to run rampant: things you thought essential are broken and other things are vastly improved.

She would always feel this wild girl was the truest of any of the people she had already been: adored daughter, bourgeois priss, rebel, runaway, dope-fiend San Francisco hippie; or all the people she would later be: mother, nurse, religious fanatic, prematurely old woman. Vivienne was a human onion, and when I came home at twenty eight years old on the day the monster died, I was afraid that the Baptist freak she had peeled down to was her true, acrid, tear-inducing core.

I'm ambivalent about the Orange Prize. I was really proud to be shortlisted alongside the other writers, whom I admire. That said, I don't know if it's best way of addressing gender inequality problems.

And she, the new mother of a daughter, felt a fierceness come over her that seized at her heart, that made her feel as if her bones were turned to steel, as if she could turn herself into a weapon to keep this daughter of hers from having to be hurt by the world outside the ring of her arms.

I think I'm an optimistic person. Ultimately I believe in people. I believe they can be robust. When my collection Delicate Edible Birds came out there were one or two people who read the title as being a commentary on the characters within the pages, the women in the book, meaning that they were these fragile girls meant for male consumption. But I had meant the opposite - these people are tough. Dark things happen to them but they get on with life as best they can.

I have a feeling that books are a lot like people - they change as you age, so that some books that you hated in high school will strike you with the force of a revelation when you're older.

A lot of my work comes from a place of despair or fear. I often write in order to gain some sort of control over aspects of my life or the world that seem too dark to look at directly.