Candor compels me to admit that I have no conclusive research to support my view that jingles are less persuasive than the spoken word. You'd run like hell if a salesman came to your door and began singing at you. Why do it in advertising?

If you ever have the good fortune to create a great advertising campaign, you will soon see another agency steal it. This is irritating, but don't let it worry you; nobody has ever built a brand by imitating somebody else's advertising.

Madison Avenue is full of masochists who unconsciously provoke rejection by their clients. I know brilliant men who have lost every account they have ever handled.

The more informative your advertising, the more persuasive it will be.

Consumers still buy products whose advertising promises them value for money, beauty, nutrition, relief from suffering, social status and so on.

If you can’t be brilliant, at least be memorable

Big ideas come from the unconscious. This is true in art, in science, and in advertising. But your unconscious has to be well informed, or your idea will be irrelevant. Stuff your conscious mind with information, then unhook your rational thought process. You can help this process by going for a long walk, or taking a hot bath, or drinking half a pint of claret. Suddenly, if the telephone line from your unconscious is open, a big idea wells up within you.