Large Word documents are often sprinkled with references to information throughout a document. You can enter them manually, but they'll be hard to maintain later. Instead, use this simple technique.

Position the cursor at the end of the document (you’ll probably add a new page to your document). In the Insert group (still on the References tab), click Insert Index.

You can add page numbers in Word to the header or footer sections of a document using the page numbers option in the Insert menu.