The book "The Life-Changing Magic of Tidying Up" became a huge hit, selling over 13 million copies and being translated into 40 countries. The author, tidying consultant Marie Kondo (commonly known as KonMari), is a globally renowned figure, having been selected as one of TIME magazine's "100 Most Influential People" in 2015. "Achieve Your Dreams! Time Management Skills for Successful Women" is a helpful book compiled by PHPカラット (PHP Karat) that teaches you the secrets to spending each day to the fullest with a smile. Both books are designed to support hardworking women.