Searching documents and colculating relevancy scores is an important part of the Elasticsearch search API. Fortuneatly, it doesnt stop there. By utilizing aggregations in the search API, we can ask our data complex questions to group our data and extract statistics. In this lesson, we will dive into the world of aggregation in Elasticsearch. We wil cover the 3 main types of aggregations and demonstrate how to use them by performing several aggregations on our bank account data we bulk ingested earlier in the course.