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Facets are a great tool to help guide your users to the information they are looking for. Its a way of narrowing down the items that are visible on the screen. They perform a similar function to exposed filters in Views, but are more flexible, and performant.
The Search API project comes with another extension module that integrates the Search API with the Facet API, the Search Facets module. Search Facets provides the ability to create facets on any search executed anywhere in Drupal. So, in this video, I will you show how to install and enable Search Facets and configure facet blocks.