Alternative text, or alt text, is different from including a caption for an image in your book; it is a clear description of what is taking place in the image so that readers who use voice-to-text software can understand its context. Used commonly on websites, alt text can be easily built into your InDesign document for all of your images before you convert your book into an EPUB—and here is how to write it.
We live in a world that was created for those who are seeing. Think about it, how many times a day do you pass a sign or an advertisement? Probably more times than you can count. The internet is a place that can break those barriers and it’s slowly becoming more and more accessible. But, of course, we all have a role to play here. Taking the time to add this text to your image can give your followers a fuller experience of your work. And who doesn’t want that?