Marie Kondo is a Japanese organizing consultant and bestselling author. Dubbed the "queen of clean," she is known for the KonMari method of organizing and decluttering. She has written four books on organizing, including the New York Times bestselling book The Life-Changing Magic of Tidying Up: The Japanese Art of Decluttering and Organizing and the newer bestseller Spark Joy: An Illustrated Master Class on the Art of Organizing and Tidying Up.