# Alt Lines
> Alt text, captions, transcripts and audio descriptions help people access visual and audio content, but each serves a different purpose.

## Entries
- [Decorative or Informative? How to Decide When an Image Needs Alt Text](https://alt-lines.pages.dev/when-images-need-alt-text/): An image needs meaningful alt text when it communicates information, performs a function or contributes to understanding the surrounding content.
- [Describing People in Alt Text Without Guessing Identity, Age or Mood](https://alt-lines.pages.dev/describing-people-without-guessing/): Useful alt text describes relevant visible details about people without presenting guesses as facts.
- [Editing Machine-Generated Alt Text for Product Photos: Ten Practical Revisions](https://alt-lines.pages.dev/machine-generated-alt-text-product-photos/): Machine-generated alt text for product photographs can provide a useful starting point, but it often needs editing for accuracy, relevance and context.
- [Captions, Transcripts and Audio Description: How They Differ and When to Use Each](https://alt-lines.pages.dev/captions-transcripts-audio-description-guide/): Captions, transcripts and audio description serve different accessibility needs.
- [Screen Reader Accessibility for Photo-Led Character Platforms: A Practical Guide](https://alt-lines.pages.dev/screen-reader-guide-photo-led-character-platforms/): Photo-led character platforms combine portraits, profile information and interactive content, so accessibility depends on more than whether an image has a.
- [How Long Should Alt Text Be? Practical Examples From 20 to 200 Characters](https://alt-lines.pages.dev/alt-text-length-examples-20-200-characters/): Alt text should be long enough to communicate the useful information in an image and short enough to avoid unnecessary detail.

## About
- [About Alt Lines](https://alt-lines.pages.dev/about/): what the site covers and how entries are made

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