Redis is an innovative data tool that offers more flexibility than other available NoSQL key-value stores like Cassandra or DynamoDB. Because Redis accepts hashes, strings, lists, and other structures as values, the key-value idea can be expanded to a wider range of use cases. Redis works with in-memory datasets to provide lightning-fast response times. It's free, open source, and easy to utilize from most standard programming languages. Redis in Action is an example-driven book that introduces Redis and shows how to use it effectively. First, it demonstrates how to properly set up Redis and explores the key-value model. Then, it dives into real use cases including simple caching and distributed ad targeting. It teaches how to scale Redis from small jobs to massive datasets. Experienced developers will appreciate chapters on clustering and internal scripting to make Redis easier to use. Owners of a Manning pBook purchased anywhere in the world can download a free eBook from manning.com at any time. They can do so multiple times and in any or all formats available (PDF, ePub or Kindle). To do so, customers must register their printed copy on Manning's site by creating a user account and then following instructions printed on the pBook registration insert at the front of the book.