During the step-by-step procedure of creating your chart you will find the Legend Box page of the Create New Chart dialog box A window used to supply information to Publisher..
If you are editing an existing chart A pictorial representation of information from a table eg a graph., double-click on the chart to display the Edit Chart Properties dialog box and select the Legend Box tab.
Check the Display Legend Box check box to display a legend box with your chart.
Note:
You can see the effect of the changes you make in the display box.