How do I go about creating a legend on my map?
Once you have added features and layers to your map, you should click on Display/Legend…from the mapping window. This will pop up a legend builder widget that should have your map layer items listed as displayed items in the legend. If you notice items are missing, click on theUpdate… button and then tick the Add items from map that are not in legend box. Click OK. This should add any missing items to the legend builder. You can now adjust and customise the look and feel of your legend using the options available.
For further information, please check the online help topic Legends – Display.