"Secret Promotions of a Small Salon Where Customers Have Been Coming for 10 Years" Kunio Mukai Price: ¥1800 I previously purchased this book used. Therefore, this item is a used copy of a used book. The knowledge gained from reading it once is sufficient, so even a used copy of a used book will be helpful. #KunioMukai #Kunio_Mukai #Book #Industry/Commerce