Oh, I love labels, as long as they are numerous. I'm an American writer. I'm a Nigerian writer. I'm a Nigerian American writer. I'm an African writer. I'm a Yoruba writer. I'm an African American writer. I'm a writer who's been strongly influenced by European precedents. I'm a writer who feels very close to literary practice in India - which I go to quite often - and to writers over there.

I became aware of just how fleeting the sense of happiness was, and how flimsy its basis: a warm restaurant after having come in from the rain, the smell of food and wine, interesting conversation, daylight falling weakly on the polished cherrywood of the tables. It took so little to move the mood from one level to another, as one might push pieces on a chessboard. Even to be aware of this, in the midst of a happy moment, was to push one of those pieces, and to become slightly less happy.

My own literary interest is more about excavating the past, or sensing the past inside the present. This requires all kinds of exclusions and sleights of hand. There's an admittedly antiquarian flavor to it, even though there's enough of the present included to lull the reader.

Still, there's that faint glimmer of hope we feel when we sense, in other people, the same kind of attentiveness to life that we take comfort in. Why else would anyone watch Haneke films or read Sebald? The material is grim, but it's redeemed by the quality of the attention.

The shape the words end up taking are themselves the meaning of the words, they are retrospectively what we meant to say. There's no way of knowing this until you register it in visible form. But the other side of this is that you do have some idea of where you are going.

The novelist can't successfully depict such horrifying reality. But she can, and must, try, to bear witness. There are many ways of doing this; the mode I prefer is indirect.

If you see a theme that you might want to take a photo of, you sort of stand there for an hour waiting for it to resolve, waiting for the geometry of a theme to be exactly what you want them to be. That was my process to get photos.