One of the many great things about WordPress is its sheer versatility. It can be almost anything to anyone, thanks to the huge array of modifications built upon the same kind of framework. Themes are a great way to utilize that versatility.
Going through the rest of the features on the Slim Free WordPress Theme, you’ll find that it has a built-in gallery style template for showcasing photos, drop down menus, integrated related posts, widgetized footer, and featured posts on the homepage.
For more information, including some screenshots, check out WP Explorer. That page will also contain the free download link to go along with this Creative Commons licensed theme.