PReFACe tO the enGlIsh eDItIOn 13 is much more to say about their elective affinities, and I would be happy if this book could become the starting point for a wider discussion.Now that I am writing this preface, my deepest regret is that Harun Farocki is no longer here to share his immense knowledge, inventiveness, wit, integrity, and intelligence with us.His sudden and unexpected death in July 2014 turns the following pages into a document of sorrow and commemoration.I feel an enormous gratitude for having known him, and dedicate this book to his memory.Berlin,