“The Little Book of Skincare” by Charlotte Cho is a comprehensive guide to Korean beauty rituals and practices. The book is divided into three parts, each focusing on a different aspect of skincare: Preparation, Layering, and Maintenance. In the first part, “Preparation,” Charlotte Cho discusses the importance of understanding your skin type and how to properly cleanse your skin. She also covers the Korean double-cleansing method, which involves using an oil-based cleanser followed by a water-based cleanser to thoroughly remove dirt, oil, and makeup from the skin. The second part, “Layering,” delves into the Korean skincare practice of layering multiple...