Abstract: A user interface system for use with an internet ordering system includes a user-navigable bookshelf environment providing a plurality of columns and rows for displaying items for purchase within item windows aligned along visual representations of shelves bordering the rows. A datastore of item artwork provides visual renderings of items for purchase. An Internet storefront provides a view of a portion of the virtual bookshelf environment to a user. The user interface populates the item windows with item artwork according to predefined criteria, and responds to user interaction with a control of said storefront to change the view of the virtual bookshelf environment presented to the user.