Hi, everyone. Welcome back to another module. At this point, you know how to use Spark and Spark SQL to access big data. You've also used both of those tools to work with big data. Now, we want to introduce one more concept, and that is Delta Engine. It's going to help you work faster and more efficiently, better, more optimized. You get the point. Delta Engine speeds up query performance on Data Lakes. It's even more powerful when combined with Delta Lake. We'll talk about all of that in this module. In this module, we'll also talk about data storage solutions because depending on where you work, your organization might store data in a number of ways. We want to make sure to cover some of that in this module. By the end of this module, you'll be able to list differences between data storage solution, specifically Data Warehouses and Data Lakes. You'll be able to describe how a Lakehouse relates to data management system, and also describe elements of Delta Lake and Delta Engine. When you're ready, click onto the next video to get started with this module.