read Elasticsearch in Action

• 1 - Overview
• 2 - Getting started
• 3 - Architecture
• 4 - Mapping
• 5 - Working with documents
• 6 - Indexing operations
• 7 - Text analysis
• 8 - Introducing search
• 9 - Term-level search
• 10 - Full-text searches
• 11 - Compound queries
• 12 - Advanced search
• 13 - Aggregations
• 14 - Administration
• 15 - Performance and troubleshooting