What is publishing??

Office SharePoint Server 2007 makes it easy for users to upload documents to document libraries and add tabular information to lists. However, when you want to publish longer or more unstructured information in a Web page format, and you want the content owners to be able to produce the pages themselves, you can use publishing pages to enable browser-based page editing by authorized contributors.

Each publishing page is associated with a page layout. The page layout controls the look and feel of the publishing pages that are created from it. It also defines the fields where contributors can enter various types of article content, such as article titles, graphics, quotations, and unstructured text.

Publishing pages use the publishing feature in Office SharePoint Server 2007. Publishing automates the workflow process, making it easy to use the browser to create new pages that are based on a page layout. When the page is created and edited, the content owner submits it for review. When the reviewer approves the article and publishes it, the page becomes visible to other users on the site.

A Web developer creates and customizes the page layout in Office SharePoint Designer 2007.

A content owner creates a new page based upon one of the available page layouts (in the browser).

The content owner completes the page in the browser, and then submits it for approval.

An authorized approver edits and then approves or rejects the article.

Upon approval, the article is published.

for details description visit this link :http://office.microsoft.com/en-us/sharepointdesigner/HA101741281033.aspx