Welcome to Tableau World

🗒 Course Introduction

What motivated you to create this course? Why did you decide to make it?

I first encountered a tool called Tableau in late 2015. Although Tableau had already been introduced to Korea at that time, I remember it certainly wasn't as popular as it is now. Most people I asked didn't know much about it, and naturally, there were almost no educational contents or materials produced in Korean.

I remember learning Tableau back then by clicking around various parts of the screen on my own. Also, workbooks and blogs created and shared by various Tableau users abroad served as my teachers and contributed greatly to the growth of my Tableau skills.

Even now, the materials from these people play a major role in inspiring me or helping me solve problems when I'm stuck. Just as their works were a huge help to me in learning Tableau back then, I thought it would be a good idea to systematically organize the content for those studying Tableau in Korea.

As a result, I opened a YouTube channel and began structuring this course by systematically grouping that content once again. I hope you learn a lot and look forward to meeting you as a fellow colleague using the same tool :D

🌈 Express data using Tableau

You can do a truly wide variety of things using Tableau. Currently, Tableau is being utilized in countless business fields such as sales, marketing, commerce, journalism, and manufacturing, and recently, there has been a trend of adopting Tableau in the public sector as well. Data art, which beautifully expresses data from an artistic perspective, is another area where Tableau can be applied. Here are a few representative examples of screens that can be created using Tableau.

<Sales Business Dashboard Example>

<Media Sector YouTube Channel Monitoring Example>

<Fine dust data art example>

To create Tableau screens like these, it is important to master the basics of Tableau. As with everything, not just in the software field, the quality of the final result can vary completely depending on how strong your foundational skills are. I am confident that the 'Welcome to Tableau World' class prepared here will be a great help in building those foundational skills!

🙌 Tools used in this course

Tableau Desktop is a paid product, but it comes with a 2-week free trial. You can download Tableau Desktop here. Tableau Public is a free product and can be downloaded here. The main differences between the Desktop and Public versions are: (1) the Public version cannot save workbooks to your local machine, and (2) the Public version cannot load data stored in databases. The Public version is perfectly fine for following along with this course. Guidelines for installing Tableau can be downloaded here. Please refer to them to install Tableau!

🙋🏻‍♂️ I'm curious!

Q. Can non-majors take this course?
A. Basically, if you have experience handling data—of any kind—it will be much easier to learn Tableau. This is because learning Tableau is ultimately about dealing with data. However, it is perfectly fine even if you have no such background. I also come from a humanities background and only started analyzing data in earnest when I went to graduate school, so even if you don't have a STEM background, there is no problem studying Tableau as long as you have the enthusiasm. In fact, I think it will serve as a great foundation for such people to enter the world of data.

Q. Why should I learn Tableau? What are the benefits of learning it?
A. It is the most widely used data visualization and BI tool in the industry. In fact, no other reason is needed. Think of five companies that an average person would recognize. It wouldn't be far-fetched to say that four or five of them are using Tableau. I won't say that Tableau guarantees employment or a career move. However, I can guarantee that Tableau skills will be a "huge" help in getting a job or changing careers.

Q. Are there any special advantages unique to this course?
A. It is true that the number of Tableau-related educational programs in Korea has been increasing recently. This is a welcome development as it means the user base is growing. One of the greatest strengths of this course is that it is systematically structured. When we take a course on how to use tools like PowerPoint or Excel, we don't cover every single detail from A to Z. It is more desirable to learn the essential techniques frequently used in practice, along with some theoretical background. The remaining minor details can be looked up as needed while using the tool. This course is structured in the same way. The curriculum focuses on the core aspects of Tableau that a beginner must know. The criteria for determining what "must be known" is based on how frequently that function is utilized in real-world practice. I have filtered out what is important and what is not based on my diverse practical experience, and those insights are embedded throughout the curriculum.