MongoDB is currently the most popular document-oriented database in the NoSQL space. While traditional database management systems encounter scaling and performance limits with large data volumes, MongoDB can efficiently operate even in the petabyte range and beyond. Additionally, MongoDB offers many features that facilitate the processing of big data. Compact and illustrated with numerous examples, this book introduces you to the use of MongoDB. It begins with a quick start: here you will install MongoDB and gain initial experience in handling semi-structured data and the advantages of schema freedom. Building on this, the book covers topics including: - Collections & Documents - Queries & Indexes - Replication (Fault Tolerance) - Sharding (Horizontal Scaling) - Schema Design - MapReduce - Aggregation Framework.