It's not easy making a living as a writer, and for many years I worked at a Waterstones in Dublin. It was a good environment for an aspiring writer, with lots of events and authors appearing.

I started reading Dickens when I was about 12, and I particularly liked all of the orphan books. I always liked books about young people who are left on their own with the world, and the four children's books I've written feature that very thing: children that are abandoned by their families or running away from their families or ignored by their families and having to grow up quicker than they should, like David Copperfield - having to be the hero of their own story.

Bruno opened his eyes in wonder at the things he saw. In his imagination he had tough that all the huts were full of happy families, some of whom sat outside on rocking chairs in the evening and told stories about how things were so much better when they were children and they'd had nowadays. He thought that all the boys and girls who lived there would be in different groups, playing tennis or football, skipping and drawing out squares for hopscotch on the ground. As it turned out, all the things he thought might be there-wern't.'' -The boy in the striped Pajamas

He looked the boy up and down as if he had never seen a child before and wasn't quite sure what he was supposed to do with one: eat it, ignore it or kick it down the stairs.

. . .only the victims and survivors can truly comprehend the awfulness of that time and place; the rest of us live on the other side of the fence, staring through from our own comfortable place, trying in our own clumsy ways to make sense of it all.

Unless you're very boring, I think most people who've lived long enough have something in their past which will never go away. As a writer, my interest has become in writing about much more emotional, personal topics. I'm trying to reach into subjects I have never written about before.

The thing about exploring is that you have to know whether the thing you've found is worth finding. Some things are just sitting there, minding their own business, waiting to be discovered. Like America. And other things are probably better off left alone. Like a dead mouse at the back of the cupboard.