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Population Pyramid of South Korea

Population Pyramid of South Korea

This chart shows the projected changes in Korea's population by age group from 2022 to 2072, based on data from Statistics Korea.

Adding Country Flag Icons in Tableau

Adding Country Flag Icons in Tableau

This guide explains how to add flag images in Tableau using its feature that allows dynamic image insertion.

Why "No." is the Abbreviation for "Number"

Why "No." is the Abbreviation for "Number"

In our daily lives, we often see "Number" abbreviated as "No.". For example, when creating a list or indicating order, we use "No. 1," "No. 2," and so on. But if you look closely, the word "Number" doesn't contain the letter 'o' at all. So, why did "No." become the abbreviation for "Number"?

How to Create Radar Chart in Tableau

How to Create Radar Chart in Tableau

This article explains how to create a radar chart (also known as a spider chart), which is useful for identifying the characteristics of different items.

Using Date Constants in Tableau Calculated Fields

Using Date Constants in Tableau Calculated Fields

This is a method you can use when writing calculated fields that compare against a specific date.

Documentary Boom

Challenge Featured

Documentary Boom

Documentary has rapidly grown to become the second-largest film genre. Despite this, voter participation remains low. With better promotion and access, the genre has strong potential for further growth.

Difference Between Top and Bottom Date Aggregation Options in Tableau

Difference Between Top and Bottom Date Aggregation Options in Tableau

This post explains the confusing aggregation options that often appear when working with date fields in Tableau.

Korea’s Elderly Poverty: A Call for Policy Rethink

Korea’s Elderly Poverty: A Call for Policy Rethink

South Korea, facing the highest old-age poverty rate in the OECD, is considering extending the retirement age. Drawing on past experience and Japan’s gradual reforms, a careful approach is needed—one that includes wage system changes and flexible reemployment policies.

How to Create Waffle Chart in Tableau

How to Create Waffle Chart in Tableau

This guide shows you how to create a waffle chart in Tableau—a useful visual for understanding what share a particular item holds in the overall market.

Korean Companies Refuse to Share the Wealth

Korean Companies Refuse to Share the Wealth

The failure of Korea’s Commercial Act amendment has once again raised concerns about the country's weak shareholder return practices. In response, major institutions are calling for stronger corporate governance and better returns for investors.

Difference Between Blue and Green Fields in Tableau

Difference Between Blue and Green Fields in Tableau

Many people assume that blue fields are dimensions and green fields are measures. While this assumption often holds true, it’s not technically accurate. In this post, we’ll break down what these colors actually mean and how understanding them can improve your visualizations.

Automobiles & Semiconductor Parts Drive Growth Amid Rising AI Demand

Automobiles & Semiconductor Parts Drive Growth Amid Rising AI Demand

In 2024, Korea’s exports to the United States reached $127.8 billion, an increase of 10.4% compared to the previous year — the highest figure ever recorded. The U.S. remained Korea’s second-largest export market, accounting for 18.7% of the total export volume.

Trellis Arrangement in Tableau

Trellis Arrangement in Tableau

This is a useful technique when there are too many items to display in a single row or column, making it difficult to compare them effectively.

Trump’s 25% Tariff on South Korea: Fair or Unfair?

Trump’s 25% Tariff on South Korea: Fair or Unfair?

In April 2025, the United States announced a 25% tariff on Korean imports, once again escalating trade pressure on South Korea. The move was justified under the banner of “correcting trade imbalances,” a core message of former President Donald Trump during his time in office.

Understanding FIXED LOD Expressions in Tableau

Understanding FIXED LOD Expressions in Tableau

LOD expressions allow you to perform calculations at a specific level of granularity, independent of the aggregation level currently used in your visualization. Among them, FIXED is a particularly useful function that lets you fix aggregations at a dimension level defined by the user.

One-Third of South Koreans Live Alone

One-Third of South Koreans Live Alone

The rise of single-person households in South Korea is driven by social and economic changes, including delayed marriage and aging. This shift impacts consumption, housing, and welfare policies.

Synchronize Axis Heights Across Sheets in Tableau

Synchronize Axis Heights Across Sheets in Tableau

This guide explains how to keep the axis scale consistent for a single measure across multiple sheets.

South Korea's Population Structure is Rapidly Changing due to an Aging Society

South Korea's Population Structure is Rapidly Changing due to an Aging Society

South Korea’s population is declining after peaking at 51.75 million in 2024. With rapid aging, nearly half the population will be 65 or older by 2072, posing major challenges for the economy, labor, and welfare.

How to Create Butterfly Chart in Tableau

How to Create Butterfly Chart in Tableau

Learn how to create a butterfly chart, a great way to compare two datasets side by side.

Unstoppable Rise in Private Education Expenses in South Korea

Unstoppable Rise in Private Education Expenses in South Korea

Despite a declining student population, private education expenses in South Korea continue to rise. In 2024, total spending reached 29.2 trillion KRW, up 7.7% from the previous year. This growth highlights parents' increasing reliance on private education.

Difference Between Tableau Public and Tableau Desktop

Difference Between Tableau Public and Tableau Desktop

This article explains the key functional differences between Tableau Public and Tableau Desktop from the perspective of dashboard creation.

Using Scatter Chart in Tableau

Using Scatter Chart in Tableau

Scatter charts are a great way to visualize the distribution of data points. In this post, we’ll explore how to use them more effectively and highlight key considerations to keep in mind. Understanding Scatter Charts as a Distribution Tool Scatter charts plot data points based on two measures, one

Adding Reference Labels with Arrows on Axes in Tableau

Adding Reference Labels with Arrows on Axes in Tableau

When a sheet is too complex to add reference lines without cluttering the visualization, you can use arrows to display additional information in a simpler way.

Issue of Missing Axis Rulers in Tableau Desktop

Issue of Missing Axis Rulers in Tableau Desktop

This issue occurs when the header display for the column shelf is hidden.

How to Create Funnel Chart in Tableau

How to Create Funnel Chart in Tableau

A guide on how to create a funnel chart, which is useful for visualizing step-by-step reductions in a process.