I purchased this new on Amazon and read about a quarter of it, but then it sat on my bookshelf for about six months to a year, so I'm selling it. As far as I can tell, there's no writing in it. "Algorithms to Live By: The Computer Science of Human Decisions" Brian Christian / Tom Griffiths / Kyoko Tazawa Price: ¥2200 #BrianChristian #TomGriffiths #KyokoTazawa #Kyoko_Tazawa #book #society/economics_finance