"Super-Fast Work Techniques Drilled into Me at McKinsey" Sachiyo Oshima Price: ¥770 I read this once after buying it new and then stored it on my bookshelf. I had a paper cover from the bookstore on it, so there are no noticeable stains or tears, and it's in good condition. If you don't mind a used book, please consider purchasing it. m(_ _)m #SachiyoOshima #Sachiyo_Oshima #book #society/general