"The Life-Changing Magic of Tidying Up" is a bestselling book by Marie Kondo that introduces a unique approach to decluttering and organizing. Kondo emphasizes the importance of keeping only those items that "spark joy" in one's life, encouraging readers to evaluate their belongings based on emotional connection rather than practicality. The book outlines the KonMari Method, which involves tidying by category rather than location. It encourages individuals to tackle their possessions in a specific order: clothes, books, papers, komono (miscellaneous items), and sentimental items. This method aims to create a more peaceful and organized living environment, ultimately leading to a more fulfilling life.