Set yourself to becoming the best-informed person in the agency on the account to which you are assigned. If, for example, it is a gasoline account, read books on oil geology and the production of petroleum products. Read the trade journals in the field. Spend Saturday mornings in service stations, talking to motorists. Visit your client’s refineries and research laboratories. At the end of your first year, you will know more about the oil business than your boss, and be ready to succeed him.

I used to start my questionnaires by asking, ‘Which would you rather hear on the radio tonight – Jack Benny or a Shakespeare play?’ If the respondent said Shakespeare, I knew he was a liar and broke off the interview.

When copywriters argue with me about some esoteric word they want to use, I say to them, ‘Get on a bus. Go to Iowa. Stay on a farm for a week and talk to the farmer. Come back to New York by train and talk to your fellow passengers in the day-coach. If you still want to use the word, go ahead.

Down with committees Most campaigns are too complicated. They reflect a long list of objectives, and try to reconcile the divergent views of too many executives. By attempting to cover too many things, they achieve nothing. Many commercials and many advertisements look like the minutes of a committee. In my experience, committees can criticize, but they cannot create. ‘Search the parks in all your cities You’ll find no statues of committees’ Agencies

It is a good idea to start the year by writing down exactly what you want to accomplish, and end the year by measuring how much you have accomplished. McKinsey imposes this discipline on its partners and pays them according to how many of the things on their lists they accomplish.