In 2001, Financial Times Prentice Hall published 4D Branding: Cracking the Corporate Code of the Network Economy. Thomas Gad wrote it. Richard Branson wrote the foreword. Within a few years it had been translated across Europe and Asia and had become one of the more quietly influential branding books of its decade.
Gad came to the subject from twenty years in advertising — among other work, the line "Connecting People" for Nokia was his. He had grown impatient with how the industry described brands: as logos, as campaigns, as a tone of voice. None of it explained why some brands lasted and others, equally well-funded, did not.
His answer was that a brand is not a thing a company owns. It is a relationship — and like any relationship, it lives in more than one dimension at once. He counted four.