Navigation consists of the menu items and links that guide your site visitors to the content. These menus can be either standalone or multi-tiered with sub-categories grouped under a major header. In this case, when a viewer clicks on the major header, the sub-categories are revealed. Navigation may also be in terms of links you have created in articles or on the pages themselves. Many of your site menu items will contain sub-menu items. These menu items are referred to as 'parents' and sub-menu items are referred to as 'children'. Just to complete the genealogical analogy, menu items which share the same parent are called 'siblings'. For example, take a look at the navigation menu to the left. Chapter 1: Navigation is the parent menu. The menu editor is a child of this parent menu and a sibling of all other menu items display under Chapter 1: Navigation. This chapter provides information about using the menu editor and assigning pages to the menu items.