So, welcome to UX research scale. During this course, we're going to be talking about a number of UX research methods that we use every day to understand large groups of people, experiences that serve billions of people across the world, and how UX research has done across larger organizations that are more UX mature. The first thing that we'll be covering is what is UX research at scale? In short, it is those things that I just mentioned, really thinking about more complex interactions that happen with larger groups of people. I'm going to be teaching a lot of the segments on survey research, and part of the reason why we're spending so much time on surveys is that there are a lot of the bread and butter of doing UX research at scale. Lee is going to be talking a lot about different types of UX at scale types of methods you can follow, and I'm going to focus on surveys. Pressure does it so complicated and we're going to discuss a little bit about how do you make these decisions about which method you should follow to reach your research goals. Now, the essential part there is that you need to be clear about what your research goals are. When you're picking one of the methods that we talk about throughout this course, you really want to be thinking about how am I going to use this data, who am I going to inform, who are my stakeholders, what kind of analyses am I going to do, and what kind of decisions am I going to make out of these data? Surveys are a great way to collect data and they're great way to get people to think about questions they may have thought about before, and a great way to get access into described populations, but surveys are complicated. In graduate school, I took 18 courses on how to do surveys. There are survey methodology programs. You become a graduate student just in conducting surveys. So, we're just going to give you a really great taste on how complicated they are and how they fit into this larger package of UX at scale. Yeah. I think bottom line if you can write good survey questions, you can conduct great UX research and that is because once you master being able to structure a good survey question, that means you can extend that skill to all the other methods that you would ever want to ask a question in which is pretty much all the rest of the methods that we're going to be talking about. So, with that, thank you. We look forward to continue in the conversation around UX at scale.