Gregor Hens, born in 1965, is a German writer and translator. He has notably translated Will Self, Jonathan Lethem and George Packer into German. The City and the World is his second book to be published by Fitzcarraldo Editions. Jen Calleja is a writer, translator, curator and musician. She has translated prose and poetry for Bloomsbury, PEN International, the Austrian Cultural Forum London and the Goethe-Institut.