If reinvention, astounding marketing, innovation, enormous talent and fearlessness are not in your career toolkit, perhaps you should take a closer look at how David Bowie altered his persona and his career to become a hugely powerful influence on popular culture and one of the most brightly shining stars of the rock world.

I am a fan, but even if you are not, we can all learn from this man who constantly took on new roles, braved the world of music, the theatre, film, art, the Internet,...