The data visualization style guides for line charts and bar charts are quite similar. Let's reinforce some principles and add a few new ones that are particular to line charts.
All components of a chart should be made coherent by adequate labeling. We will use Tahoma as the font for all the labels and use a font size between 8 and 10.
The first label should convey the intention of the chart to the audience. Repeat the same steps we performed for the bar chart to make the following changes:
Net sales by month/yearin the General tab.