Faceting is possibly the most valuable and popular Solr search component. We've covered the five types of faceting, how to build filter queries from them, and some interesting use cases, such as alphabetic range bucketing and hierarchical faceting. Now you have the essential knowledge to put it to use in faceted navigation-based user interfaces and other uses like analytics.

In the next chapter, we'll cover Solr Search Components. You've actually been using them already because performing a query, enabling debug output, and faceting are each actually implemented as search components. But there's also search result highlighting, spelling correction, term-suggest, suggesting similar documents, collapsing/rolling up search results, editorially elevating or evicting results, and more!