"Three Tools to Develop Thinking Skills: Easy and Clear Problem Solving!" Yuji Kishira / Mayuko Kishira Price: ¥1400 See photo 5, there are indentations on the cover and front cover. See photo 6, there is a fold. No obi (paper band). There are scratches and marks on the cover, but the inside is relatively clean. This is a used book, so please refrain from purchasing if you are sensitive to imperfections or seek a perfect item. We will take measures to prevent water damage when shipping.