A legend is the description of the types of features included in a map, usually displayed in the map layout.

Changing Legend Wizard parameters alters the appearance of the legend on your map. The Legend Wizard takes you through five dialog boxes that allow you to change the layers included in your legend, the appearance of the legend title, the appearance of the legend frame, the size and shape of the symbol patches used to represent line and polygon features, and the spacing between legend items.

In this case, the default legend parameters are appropriate for your map. However, legend parameters can be modified at any time by right-clicking the legend in the Layout view and choosing Properties from the menu that appears.