Word 2010
In Word 2010 open your document and click the View tab on the Ribbon, then check the Navigation Pane.
The Navigation Pane will open on the left side of the document. Now click on Browse the pages in your documents icon.
Now you can easily navigate to specific pages of the document using the thumbnails in the Navigation Pane.
Office 2007
To browse a long document using thumbnails in Word 2007 click the View tab on the Ribbon and in the Show/Hide section check Thumbnails.
Now you can hop between pages through using the thumbnails.
If you’re tired of scrolling through long Word documents, using thumbnails in the Navigation Pane in Word 2010 and 2007 is a quick way to get to specific pages a lot easier.