Categories & Tags
Organize your reference library using WordPress’s built-in taxonomy system. Categories provide hierarchical organization while tags offer flat, keyword-based grouping.
Categories vs. Tags
| Feature | Categories | Tags |
|---|---|---|
| Structure | Hierarchical (parent/child) | Flat list |
| Use for | Broad topics, disciplines | Specific keywords |
| Best for | “What type is this?” | “What is this about?” |
| Example | Biology > Ecology > Marine | climate, coral-reefs, temperature |
Using Categories
Creating Categories
- Go to References > Categories
- Enter category name
- Optional: Set parent category
- Optional: Add description
- Click Add New Category
Or create while editing a reference:
- In the Categories panel, click Add New Category
- Enter the name
- Optionally select a parent
Category Structure Examples
By Discipline:
Science
├── Biology
│ ├── Ecology
│ └── Genetics
├── Chemistry
└── Physics
Social Sciences
├── Psychology
└── Sociology
By Project:
Thesis
├── Chapter 1 - Introduction
├── Chapter 2 - Literature Review
└── Chapter 3 - Methods
Blog Posts
└── 2024 Articles
By Status:
To Read
Currently Reading
Read
├── Highly Relevant
└── Background
Assigning Categories
Single reference:
- Edit the reference
- Check boxes in Categories panel
- Save
Bulk assignment:
- Go to References > All References
- Check multiple references
- Bulk Actions > Edit
- Apply
- Select categories
- Update
Category Archive Pages
If public references are enabled, each category has an archive:
yoursite.com/reference-category/ecology/
Lists all references in that category.
Using Tags
Creating Tags
Tags are created as you use them:
- Edit a reference
- In the Tags panel, type tag names
- Separate multiple tags with commas
- Press Enter or click Add
Or manage all tags at References > Tags.
Tag Strategies
Methodology tags:
- qualitative
- quantitative
- meta-analysis
- case-study
- longitudinal
Topic tags:
- climate-change
- machine-learning
- urban-planning
Source type tags:
- primary-source
- review-article
- gray-literature
Personal tags:
- to-cite
- key-paper
- background
Tag Best Practices
- Be consistent – Use the same tag for the same concept
- Use lowercase – Avoid duplicates from capitalization
- Use hyphens –
climate-changenotclimate change - Start specific – You can always merge tags later
- Review periodically – Consolidate similar tags
Syncing with Reference Managers
Zotero Collections → Categories
When syncing with Zotero:
- Zotero collections become WordPress categories
- Subcollections become child categories
- Collection structure is preserved
Zotero Tags → WordPress Tags
- Zotero tags sync to WordPress tags
- Automatic tag matching (same name = same tag)
- New Zotero tags create new WordPress tags
Mendeley Folders → Categories
Similar mapping for Mendeley folders and tags.
Filtering by Category/Tag
In Admin
- Go to References > All References
- Use the Category dropdown filter
- Or click category/tag links on individual references
On Frontend
If enabled, visitors can:
- Browse category archives
- Filter by tag
- See category/tag clouds
Managing Categories
Editing Categories
- Go to References > Categories
- Hover over category, click Edit
- Change name, slug, parent, or description
- Update
Merging Categories
To combine two categories:
- Edit all references in Category B
- Reassign to Category A
- Delete Category B
Deleting Categories
- Go to References > Categories
- Hover over category, click Delete
- Confirm
Note: Deleting a category doesn’t delete references – they become uncategorized.
Managing Tags
Editing Tags
- Go to References > Tags
- Hover over tag, click Edit
- Change name or slug
- Update
Merging Tags
To combine similar tags:
- Edit references with Tag B
- Add Tag A, remove Tag B
- Delete Tag B
Popular Tags
The tag management page shows:
- Most used tags
- Tag counts
- Quick edit options
Category/Tag Display
In Bibliography
Group bibliography entries by category:
- In Bibliography block settings
- Set Grouping to “Category”
In Archives
Category and tag archives show:
- Category/tag name and description
- List of references
- Filter options
In Single References
Each reference page displays:
- Assigned categories
- Assigned tags
- Links to archives
Permissions
Control who can manage categories and tags:
- Administrators – Full access
- Editors – Can create and assign
- Authors – Can assign existing only
- Contributors – No category/tag access
Configure in References > Settings > Permissions.
Troubleshooting
Category not appearing
- Check it’s not empty (no references assigned)
- Verify it’s published, not draft
- Check parent category exists
Tags duplicating
- Variations in spelling/capitalization create duplicates
- Merge manually through tag management
Sync not matching
- Zotero collection names must match category names exactly
- Check sync settings for mapping options
Next Steps
- Search & Filter – Find references quickly
- Collections – Alternative grouping method
- Browsing References – Navigate your library
