You use the Graphic Styles panel (Window > Graphic Styles) to create, name, and apply sets of appearance attributes. The panel lists a default set of graphic styles when you create a new document. Graphic styles that are saved with the active document will display in the panel when that document is open and active.
Select a view option from the panel menu: Thumbnail View to display thumbnails, Small List View to display a list of named styles with a small thumbnail, or Large List View to display a list of named styles along with a large thumbnail.
Drag the graphic style to a different position. When a black line appears in the desired position, release the mouse button.
Select Sort By Name from the panel menu to list the graphic styles in alphabetical order.