> For the complete documentation index, see [llms.txt](https://help.are.na/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.are.na/docs/getting-started/blocks/editing-blocks.md).

# Editing blocks

In general, it's a good idea to add good metadata to your blocks, especially if your content is public. 

### Updating titles and descriptions

To update the title or the description of a block, open it up in the full lightbox view and click on the portion of the metadata that you'd like to update.

<figure><img src="/files/eWX5sdZbNJAeEfIeA5FT" alt=""><figcaption></figcaption></figure>

### Updating the block thumbnail (Premium only)

For blocks that are links (to webpages, or embeddable media link YouTube, Vimeo, Soundcloud etc) or files (PDFs, .mp3s, etc) you can manually update the thumbnail representation.

{% embed url="<https://vimeo.com/1068205922>" %}


---

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