I think writers can respond by writing about the refugee crisis, by looking at problems faced by migrants, by trying hard to portray them as the human beings that they are.

I think [George] Orwell is right. There are certainly moments when political differences appear minor, and someone can claim to be non-political or to want to stay out of the fray, but today is not one of those moments.

Work is hard. Distractions are plentiful. And time is short.

One of my favourite contemporary fiction writers is a Texan, Ben Fountain. His extraordinary novel, Billy Lynn's Long Half-Time Walk, all takes place within the half-time show at a Dallas Cowboys football game. No one has better summed up the American appetite for spectacle, the link between sports and politics, and the absolute madness of George W. Bush's Iraq War.

The late Nadine Gordimer in South Africa, for example, had a wonderful ability to get her country's injustices and contradictions down on paper. Ditto for her countryman the great playwright Athol Fugard.

Growing inequality is a huge problem, and of course is intimately connected to xenophobia and racism.

In his fierce, bold determination to see the lives of modern-day slaves up close, Benjamin Skinner reminds me of the British abolitionist of two hundred years ago, Zachary Macaulay, who once traveled on a slave ship across the Atlantic, taking notes. Skinner goes everywhere, from border crossings to brothels to bargaining sessions with dealers in human beings, to bring us this vivid, searing account of the wide network of human trafficking and servitude which spans today's globe.