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## 6 Tags

An excellent way to implement labels and contexts for cross-correlating information is to assign tags to headlines. Org mode has extensive support for tags.

Every headline can contain a list of tags; they occur at the end of the headline. Tags are normal words containing letters, numbers, ‘`_`’, and ‘`@`’. Tags must be preceded and followed by a single colon, e.g., ‘`:work:`’. Several tags can be specified, as in ‘`:work:urgent:`’. Tags will by default be in bold face with the same color as the headline. You may specify special faces for specific tags using the option `org-tag-faces`, in much the same way as you can for TODO keywords (see Faces for TODO keywords).