Image Accessibility Creator
Images
Accessibile Icons
Add alternative text to a shape, picture, chart, SmartArt graphic, or other object - Microsoft Support
Make your Word documents accessible to people with disabilities - Microsoft Support
Understanding Alternative Text
How to Write More Effective Alt Text
Everything you need to know to write effective alt text - Microsoft Support
Complex Alternative Text Solutions: Focusing on Purpose
How do I upload and embed an image in the Rich Content Editor as an instructor?