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Elasticsearch is the world's most popular search and analytics engine, powering everything from e-commerce product search to real-time log analysis at global scale. This book takes you on a complete journey from absolute beginner to production-ready expert. You will learn how Elasticsearch works under the hood, how to deploy it across any environment, how to design indexes for maximum performance, how to write sophisticated queries using the full Query DSL, how to tune relevance and ranking, how to leverage modern vector and semantic search, and how to operate clusters reliably in production. Every chapter includes hands-on code examples in Python, Java, JavaScript, and REST API, along with real-world case studies drawn from actual deployments. Whether you are building your first search feature or managing a multi-terabyte cluster serving millions of queries per day, this book gives you the knowledge and practical skills to succeed.

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Kick off your book project, get started with GhostAI, get better at marketing, or spend the day doing all three! Free live workshops on Zoom. Saturday, June 27, 2026.

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