It is a short introduction to NoSQL Databases that is freely available thanks to Christoph Strauch.
Follows the Table of Content:
- Introduction
- The NoSQL-Movement
- Basic Concepts, Techniques and Patterns
- Key-/Value-Stores
- Document Databases
- Column-Oriented Databases
- Conclusion
- Further Reading, Listening and Watching
Follows the link down below:
Comment
After checking the references, it was written probably at the end of 2011.
You will not find more recent techniques about Distributed HashTables/Storages/BlockChains, Graph Databases, or more recent NoSQL libraries such as LevelDB or RocksDB.
Still a good little book with well digested content.