Assistive technology users use link lists to navigate content. This means they cannot rely on context to tell them what a link does. Each link needs to be uniquely descriptive of what it does. The best place to uniquely identify a link is in the link text. Good examples are "View Assignment 34," "Visit Entomological Society of America," etc.
Above is an image displaying two tables.
For every HTML web link embedded into the Rich Text Editor that contains only an image and no textual content, concise and descriptive alternative text is mandatory. The alternative text should describe the purpose of the link (e.g., the "destination" that the user will be taken to upon activation of the link). For more information on adding alternative text to an image, see How can I make images more accessible?
Assistive technology users will benefit from knowing what type of file it is they are downloading. When you link to a file in the Rich Text Editor, include the information in the link text.
Example: essay (MS Word), report (PDF), presentation (MS PowerPoint)