The title of this volume speaks for itself. We have all heard of those means of communication, namely the press, television, radio, cinema and posters, which convey information and purvey entertainment throughout the world. I am not attempting to describe them here, for my readers know very well what they are. I am more interested in understanding how we experience the media. On the one hand, they are 'real' objects, as palpable as pieces of furniture; on the other hand, they draw us into a world taken for granted, although what is said or shown does not happen in front of us. My concern is with this duality and the workings of our daily routines: what part do the media play in our lives? How do we accept, or reject what they tell us? How far do they try to sway our thinking? This is a critical essay aimed at questioning its readers' practices.