Set of 3 Books by Kodai Ando: "The Leader's Mask" "Systematize Everything" "The Demon of Quantification" This is a set of three practical books by Kodai Ando, very popular among business leaders and management. Recommended for those who: ・Want to learn how to think like a leader ・Want to streamline and systematize their work ・Want to develop the ability to achieve results with numbers! ✦ More affordable than buying individually! Perfect for those who want to learn about management and team operations. 【Condition of the books】 ・No writing ・Signs of use, but no problem for reading ・With covers (slightly scuffed) ※Please purchase only if you understand that these are used items.