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i'm sure her management knows about all those unofficial books and photos but i doubt she cares or wants to know about it. if she cared what is being written about her then she would have to read all those newspaper and magazine articles as well and i doubt that she really wants to spend her time like this.
edit: ok, now I'm confused about which photobook we're talking about. walking.proud, you were refering to that book, right?
http://www.hmv.co.jp/en/product/detail/3696791