I purchased this at a bookstore a few years ago. There is no writing in it. After reading it once, I've kept it in a dark place at home with a cover on. Please feel free to contact me if you have any questions. "Practical Customer-Centric Marketing: Businesses Grow from the Analysis of Just One Person" Kazuki Nishiguchi Price: ¥2000 There are some scratches on the cover, but other than that, it's in good condition. Thank you.