“Adding alternative text for images is the first principle of web accessibility. It is also one of the most difficult to properly implement” ~WebAIM

Are you using images in your OER learning materials?  Have you included alternative text, called alt text, for each image?

WebAIM provides very helpful information on the proper use of alt-text.

Here are some key takeaways:

• Your use of atl text will depend on the content and function of the image.
• If your image is fully described in the text you may not need alt text and could instead include an  empty or null alt attribute (e.g., alt=””).
• Do not start alt text with “this is an image” or “Image of”.  The screen reader already knows it is an image, so you don’t need to tell the reader again that it is an image.
• Be succinct and don’t be redundant.
• A handy trick explained by WebAIM: “In many cases you can ask the question ‘If I could not use this image, what would I put in its place?’ to determine appropriate alternative text. In the example above, it’s not likely that the handshake photo would be replaced with text, thus alt=”” is probably sufficient.”

For more information please read through the WebAIM article on Alternative text: https://webaim.org/techniques/alttext/