# Tags and subtags

Tags are embedded anywhere within the note's contents. They're regular hashtag-tags, i.e. `#psychology` or `#biology`, with the restriction that they're both preceded and succeeded by whitespace.

Subtags are tags which contain one or more forward slashes, i.e. `#psychology/disorders`, `#biology/anatomy`, or `#literature/unprocessed/urgent`. These allow you to get more specific with your tagging, to move from a more abstract subject towards a more concrete idea (or task).

It's entirely up to you how you organise your tags and subtags, or if you use tags at all.