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What we will learn
Visualize your data - bar chart
15. Add source and title information
Check yourself

## Instruction

Always include information about your data source in your chart. It gives credibility to your work and provides context for the story. A caption noting the source of your data should be located under the chart. It's usually written in a smaller font.

To do that in ggplot2, use the labs() function with the argument caption:

+ labs(caption="Source: your source")

## Exercise

Add source information to your chart as described above. Instead of Source: your source write Source: WHO. And of course, every chart needs a good title. Add one to this chart, using labs with the title argument. Your title might be "Alcohol consumption in Zimbabwe [liters per capita]". Save the changed chart to the bar object. When you're done, press to check your code.

### Stuck? Here's a hint!

You should write:

labs(
caption = "Source: WHO",
title = "Alcohol consumption in Zimbabwe [litres per capita]")