How to Descriptively Explain a Complex Chart?

If someone is visually impaired and there was no no alt text, their screen reader would only read the image title. So to help, your next step would be to add some alt text explaining exactly what's being portrayed in the image. You know, some descriptive alt text is certainly going to be better than no alt text at all. For example, if you're creating and publishing any form of video, weben ar, webenar replays, workshops, youtube, whatever it is, adding captions to your vidios is a best practice. It allows those with hearing impairments to read your video content.