People in the most populated areas of the east and west coasts of the United States are more likely to call a fizzy drink a “soda”, whereas people in the north call it a “pop”. In the south it is known as “coke”, coincidentally in the area stretching west from Atlanta, the headquarters of Coca-Cola. Photograph: AP Photo/Mark Lennihan

America does “infomaps” and interactive charts better than most. They come in all colours, are based on all types of research and show all types of us(...)