This course is designed to help learners effectively visualize business data and develop the capability to support decision-making through visualization. Learners will study various theoretical backgrounds ranging from information visualization concepts to infographic principles, visual cognition and design principles, and Gestalt laws, and systematically acquire visualization techniques that can be applied in practice. In particular, by learning about color and visual variables, information design principles (symmetry, contrast, harmony, balance), typography and layout design (grid and inverted pyramid structure), learners will be able to apply these skills when creating actual business reports, presentation materials, and visualization dashboards. Through this, learners will develop the ability to create visual materials with high information delivery power, going beyond simple data analysis.