When you create a table in Microsoft Word, often the first row consists of column headings. Then when the table spans multiple pages, those headings are lost to subsequent pages. Here's how you can tell Word to automatically print the first row of your table at the top of each page.
(2007 or newer with Ribbon Menu)
(Pre-2007 so no Ribbon Menu)
Now Word automatically repeats the table headings at the top of subsequent pages, but only subsequent pages that are the result of automatic page breaks, not if the page breaks are inserted manually.
The repeated rows are only visible in Print Layout view and Print Preview.