I start reading a book about Mark Zuckerberg Last week, I found a DVD "Social Network" in the Library. It was about Mark Zuckerberg and Facebook. It was fun to watch how he started Facebook. I watched it 4 times. First in Japanese, Second in English with Japanese subtitle, Third with the explanation of director, and forth with the explanation with actors. The actors roled Mark talks so fast in the movie! Today, I found the book called "The Mark Zuckerberg story" . The book is for English learners, so it seems to be easy to follow. I realy have no idea what the world like after being a self-made billionaire in such young age. ※　そんなに若くして、億万長者（超リッチ）になると世の中どうなるんだろう？　と書きたい。