When using images in your course, ask what role the image plays? Is the image purely decorative or does it convey meaning? Is the image composed of text or of pictures, or both? Is the image also a link? Images must be tagged either through alt-text, captioning, surrounding text, or by including a link to a description. Alt-text provides a textual alternative to non-text content in webpages. Alt-text is read by screen readers in place of images allowing the content and function of the image to be accessible.