Tags allow for detailed characterization of an item. You can tag items based on anything you want – topics, authors, countries and so on. Items can have as many tags as you like, and you can filter your library to show items having a specific set of one or more tags.
To add a tag to an item in your library, click the ‘Tags’ tab in the item display, as shown below. Next, click the ‘Add’ button and type the tag name. As you type, you will be shown a list of tags that are already in your library. You can either select one of these tags, or create a new one.
![Screenshot of Zotero library.](https://libapps-ca.s3.amazonaws.com/accounts/94585/images/Zotero_tags_button.png)
![Screenshot of Zotero library](https://libapps-ca.s3.amazonaws.com/accounts/94585/images/Zotero_add_tag.png)
To see all the tags that have been assigned to the items in your library, go to the Tag Selector at the bottom of the Left Pane.
![Screenshot of Zotero library.](https://libapps-ca.s3.amazonaws.com/accounts/94585/images/Zotero_tag_selector.png)
To filter your library to see all records that have a specific tag, click on a tag in the tag selector, for example ‘Administrative agencies', as shown above. To undo the filter, click once more on the tag. This will return you to your full library.
To search for tags, use the search bar at the bottom of the tag selector, as shown below.
![Screenshot of Zotero library.](https://libapps-ca.s3.amazonaws.com/accounts/94585/images/Zotero_tag_selector_search_bar.png)