Say it with Charts, the bible of management consultants, makes this process very clear. First, says author Gene Zelazny, decide what you want to say with a graph. Once you’ve decided what you want to say, that suggests a particular kind of comparison. That, in turn, suggests a particular choice of graph – such as a scatter plot, a line graph, a stacked bar chart or a pie chart.* Finally, underline your message by sticking it in the graph title. Don’t just write ‘Number of contracts, January-August’. Write something like ‘The number of contracts has increased’ or perhaps ‘The number of
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Charts
