Redis is primarily an in-memory, key-value store, but has many additional use cases. In this course, you'll explore the use cases of Redis that go beyond its use as a database or cache, specifically its application in messaging and streaming. You'll start by setting up communications between Redis clients using the Publish/Subscribe paradigm and the Redis CLI. Next, you'll learn how to set up Redis streams and retrieve data from them using the XREAD command. Finally, you'll use the stream data structure in Redis to record information and communicate messages to a group of consumer processes.