> For the complete documentation index, see [llms.txt](https://help.visibrain.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.visibrain.com/platform-guide/filters-subtopics-and-filter-library.md).

# Filters, subtopics and Filter Library

One of Visibrain's key added values is our powerful filtering system. 

It enables you to shift through the available data, analyze and create graphs and analytics to comprehend information you're looking at. 

[Use the filtering system](/platform-guide/filters-subtopics-and-filter-library/use-the-filtering-system.md)

[Create subtopics](/platform-guide/filters-subtopics-and-filter-library/create-subtopics.md)

[Filter Library](/platform-guide/filters-subtopics-and-filter-library/filter-library.md)

[Filter examples](/platform-guide/filters-subtopics-and-filter-library/filter-examples.md)

{% hint style="info" %}

#### What are the differences between a subtopic and the Filter Library?

* **Subtopic** are essentially subdivisions of a broader *Topic*, created to provide a better organization of content, you can use them to save a filter used to refine a Topic to, for example, focus on a sub-theme, \
  It's linked to the monitoring *Topic*. \
  You can find a *Subtopic* on the homepage and access it with one click, just like the other *Topics*.
* **The Filter Library**, on the other hand, are a list of general *Filters* you can invoque to use on any set of data and in any topic. 
  {% endhint %}