【About the Author】 Koda Ando is an author with extensive experience in the business world, offering deep insights into leadership. 【Content Overview】 This book explains the mindset required to transition from a player to a manager, allowing readers to learn the skills and mindset necessary for leadership. 【Achievements】 Published in 2022, the book has sold over 500,000 copies and is supported by many business professionals. - Title: The Mask of a Leader - Author: Koda Ando - Subtitle: The Mindset to Switch Your Head from "One Player" to "Manager" - Publication Year: 2022 - Copies Sold: Exceeded 500,000 - Genre: Business & Economics Thank you for viewing.