This wikiHow article teaches you how to insert an index page in Microsoft Word where you can list the important items covered in a document along with the related pages.
Steps
Part 1 of 2: Mark the Voices

Step 1. Open a Microsoft Word document
You can add an index to any MS Word document regardless of length, style or topic.

Step 2. Click on the References tab
It is located on the MS Word toolbar at the top of the screen, alongside other tabs such as Home, insert And Revision. It allows you to always display the relative toolbar at the top of the same Word screen.

Step 3. Click on the Mark Entry button
Its icon is a white sheet with a green plus (+) sign at the top and a red line in the center. Is located between Insert caption And Mark Quote on the toolbar of the References tab, towards the upper right corner of the screen. Clicking on it will open a dialog box titled Mark index entry to select items and phrases relevant to your index.

Step 4. Select a term or group of terms to index
Highlight the chosen word by double clicking with the mouse or using keyboard commands.

Step 5. Click on the Mark Index Entry dialog box
The term selected in the document will appear in the text field next to Main item.
- Optionally, you can enter a secondary entry or a cross reference under the main item, which will all be listed under the relevant main items in the index.
- You can also enter one third level voice, adding it to the text of the sub-item separated by a colon (:).

Step 6. Format the index page numbers
Check the box corresponding to the option you want to make page numbers in Bold or in italics in the area below the header Page number format.

Step 7. Format the entry text in the index
Select the text in the Main entry or Secondary entry field, right click and select Character to open a new dialog box where you can customize the style, size, font color and text effects; from the same window you can access advanced options such as aspect ratio, spacing and character position.
As far as font formatting is concerned, there are additional options that can be applied to any Word document

Step 8. Click on the Mark button
In this way, the highlighted term will be registered and added to the index with the corresponding page number.

Step 9. Click on the Mark All button
In this way, the search for the selected item will be carried out throughout the document and all cases in which it is mentioned will be reported.

Step 10. Select another term or phrase to mark
Highlight another term in the document and click the Mark Index Entry dialog box to display it in the Main Entry field; Again, you can customize all sub-entries, cross-references, page number, and formatting options for the new index entry in the Mark Index Entry dialog box.
Part 2 of 2: Enter the Index Page

Step 1. Scroll down and click at the bottom of the last page of the document

Step 2. Click on the Insert tab
It is located on the MS Word toolbar at the top of the screen.

Step 3. Select the Page Break option in the Insert toolbar
The button looks like the lower half of a page placed on the upper half of another and is used to conclude the previous page and start a new one.

Step 4. Click on the References tab
It is located on the MS Word toolbar at the top of the screen.

Step 5. Click Insert Index
The key is located next to Mark entry on the toolbar of the References tab and it will open a dialog box titled Index.

Step 6. Select the type of index
You will be able to choose between Returned And Normal. The indented style makes navigation easier for readers, while the regular style takes up less space on the page.
You will be able to preview all the various types and formats in the preview box as you customize the index

Step 7. Select a format for the index from Formats
You can customize the index by selecting a format chosen from those available.
- You can also create your own format by selecting As a model and clicking on the button Edit. This way you can customize fonts, spacing and style for all main and secondary items to create your own template.
- You can preview the various models from the preview box to decide which one to use.

Step 8. Change the number of columns
You can increase the number of columns from the Columns box to take up less space or you can set it to Auto.

Step 9. Click OK
This will add an index page with all the entries you marked and their page numbers. You can use the index to find pages where important terms and concepts appear throughout the document.