N1QL is a powerful language for querying, transforming, and manipulating JSON data, designed to give developers an expressive and complete way to solve real-world problems. A compilation of articles on N1QL features, optimization techniques, tools, and use cases by the Couchbase R&D team and solution team, this guide aims to help users get the most out of N1QL, with resources now available for both the 2nd Edition and a Special Edition focused on Couchbase 5.5.