In Word XP bulleted lists can help arrange Word XP documents so they are clearer. In Word XP numbered lists can do the same thing.
Word offers you many other options for your bullets and numbers other than the default that you have seen so far.
You can view the type of bullets and numbers available to you by opening the Bullets and Numbering dialog box.
The Bullets and Numbering dialog box also offers you outline numbered options. By clicking the Outline Numbered tab, you can view templates for creating an outline. The List Styles tab allows you to create your own list style using similar alignment, bullets, and characters.