Add short description text (alt text) to a book in Word.
References/Prerequisites
A Message to Authors
Alt text (alternative text) is used to describe a figure/image for a reader with low vision. The alt text will be read aloud to a reader who is using accessibility settings on a device.
In order for a book to be considered accessible and fully compliant, it must include alt text for all images; As of 2025, this is strictly required for any book to be distributed in Europe, per the European Accessibility Act.
Best practices discourage simply repeating the caption, as the alt text should be in addition to the caption, providing a description of the pertinent visual aspect(s) to assist those who cannot see the image. If the purpose of the image is mostly just to convey a general impression in support of the text, the description can be kept quite simple.
When writing short descriptions or reviewing alt text created by Scribe, follow these guidelines:
- The length should be 150 characters or fewer (including spaces). This is about two lines of text in a Word document using Arial, 12-point font.
- Describe what’s going on in the image (i.e., whether it’s a chart or photograph, whether movement is taking place, etc.).
- If there’s a figure title or caption, try not to repeat the same information in the alt text.
- Avoid using the word “image.”
- Avoid mentioning prior figure numbers. (An exception may be made if the figures occur as a sequence in which each image differs in only one way that is being noted as the salient aspect in the short description.)
For further information and examples, Scribe recommends Alternative Text for Images from the University of Michigan, which also includes a link to the WebAIM website that provides some “Bad Alt Text” examples.
See also Scribe’s Short Description page, with additional details and recommendations for writing alt text.
Alt text will be presented in this format in Word files:
{~?~IM: insert [figure file name] here. ALT: [alt text].}
As you write or review the alt text for your publication, use these guidelines to confirm that the salient aspects of each image have been described appropriately.