Here is a guide that will help you understand how to differentiate the headers of different sections of a Word document easily, in just 3 steps.

Step One: Divide your document into sections. If you have not already done it, you need to have at least two sections, in order to apply different headers. The headers can be equal to the sections, or less. You can have 5 sections with 5 different headers, one for each section, or you can have just 2 different headers, e.g. a header for the first two sections, and a different one for the remaining three sections. To divide your document into sections, go to the point where you want the start of a new section, usually a title page, and from the toolbar select “Page Layout” > “Breaks” > “Odd Page” or whatever “Section Break” you may prefer.

Step Two: Add your first header. Go to the first page of the section where you want to add your first header, double click on the empty space near the top side of the page, to open the header pane and write your first header. To have Word adding automatically as a header text the title of a chapter/section, go to “Header and Footer Tools” > “Document Info” > “Field” > “StyleRef” > “Heading 1” or “Heading 2” etc.

If you prefer in your headers only the most important/main parts of your document, and not each and every chapter, you can define e.g. “Heading 1” so that sections that belong to chapters with “Heading 2” or even lower headings won’t be reflected in the headers.