From http://www.w3schools.com (Copyright Refsnes Data)

XSL-FO Flow

XSL-FO pages are filled with data from <fo:flow> elements.

XSL-FO Page Sequences

XSL-FO uses <fo:page-sequence> elements to define output pages.

Each output page refers to a page master which defines the layout.

Each output page has a <fo:flow> element defining the output.

Each output page is printed (or displayed) in sequence.

XSL-FO Flow

XSL-FO pages are filled with content from the <fo:flow> element.

The <fo:flow> element contains all the elements to be printed to the page.

When the page is full, the same page master will be used over (and over) again until all the text is printed.

Where To Flow?

The <fo:flow> element has a "flow-name" attribute.

The value of the flow-name attribute defines where the content of the <fo:flow> element will go.

The legal values are:

• xsl-region-body (into the region-body)
• xsl-region-before (into the region-before)
• xsl-region-after (into the region-after)
• xsl-region-start (into the region-start)
• xsl-region-end (into the region-end)

From http://www.w3schools.com (Copyright Refsnes Data)