Why Does The Pedlar Sing?

Throughout history, selling and entertainment have gone hand in hand - from the medieval pedlar and the medicine show, to generations of TV commercials featuring song and dance, comedy, and cartoon animals, right up to today's celebrities who launch their own multi-million dollar brands. There are good reasons for this; we now understand better than ever before the psychological and sociological reasons why apparent frivolity creates serious business benefits.

And yet the advertising busine...