John Berger writes: 'The pocket in question is a small pocket of resistance. A pocket is formed when two or more people come together in agreement. The resistance is against the inhumanity of the new world economic order. The people coming together are the reader, me and those the essays are about – Rembrandt, Palaeolithic cave painters, a Romanian peasant, ancient Egyptians, an expert in the loneliness of certain hotel bedrooms, dogs at dusk, a man in a radio station. And unexpectedly, our exchanges strengthen each of us in our conviction that what is happening to the world today is wrong, and that what is often said about it is a lie. I've never written a book with a greater sense of urgency.'