Right-click the layer name in the ArcMap table of contents and click Properties.

Click the Symbology tab. and click Categories.

Click the Value Field drop-down arrow and click the field that contains the values you want to map.

Click Add All Values.

Click a label in the Label column and type the label you want if you want to edit the default label so more descriptive labels appear in your legend and the table of contents.


Click OK.