The text discusses querying methods in Couchbase Server, emphasizing the efficiency of direct lookups based on document keys compared to querying views or writing N1QL queries. It highlights the advantage of batching multiple key lookups into a single request to improve performance and reduce network requests, specifically using the getMulti method in Node.js. An illustrative example is provided, demonstrating how to retrieve multiple documents from a locally running Couchbase instance using this method. The text also references additional resources, including a blog post by Kirk Kirkconnel and Couchbase documentation, for further information on performance differences and batching operations.