You can add titles, subtitles, footnotes and axis titles to your chart to better portray your data by following these steps:
1. Click inside the Chart object.
2. Right-click the selected area.
3. Select Titles.
4. Check the checkbox next to the desired title you wish to add to the chart. Choices are Main Title, Subtitle, Footnote, X-Axis Title, Y1-Axis Title, and Z-Axis Title.
5. Input the desired value for the selected title into the corresponding textbox.
6. Click OK.