In a postfactual world in which claims are often held to be true only to the extent that they confirm pre-existing or partisan beliefs, this book asks crucial questions: how can we identify the many forms of untruthfulness in discourse? How can we know when their use is ethically wrong? How can we judge untruthfulness in the messiness of situated discourse? Drawing on pragmatics, philosophy, psychology, and law, All Bullshit and Lies? develops...