This book introduces you to Apache CouchDB, a document- oriented database that offers a different way to model your data. CouchDB is a schema-free database, designed to work with applications that handle document-based information such as contacts, invoices, and receipts. In CouchDB: The Definitive Guide, three of the core developers gently explain how to work with CouchDB, using clear and practical scenarios. Each chapter showcases key features, such as simple document CRUD (create, read, updated, delete), advanced MapReduce, and deployment tuning for performance and reliability.