The real power of properties comes in the ability to stick queries into pages. That is, pages don't have to be entirely static text: they can also have generated text, based on the properties on this page or others.
There are two major kinds of queries, covered in the following sections. The first is the page query. This is a query that lists all of the pages that match the specified criteria. The second is the property list, as well as the property match. A property list lists all of the properties of a specified type on a page. A property match is just like a property list, but happens only once for any given page.
The two types can be nested, as will be shown later. Together, they allow you to build very dynamic pages that list the objects in the Wiki in all sorts of useful ways.
Next: Page Queries