This week, One Piece volume 55 sold 1,121,685 copies, which means from the 9th until the 14th there were nearly 200,000 purchases per day
Not only this, but according to Oricon history, One Piece has broken the million mark for EVERY volume since volume 50 making this week the 6th week it's continued to be a million seller.
Not that I blame it. Those of you who are reading One Piece weekly can surely agree... the story is just too great right now to not
want to buy the book right when it comes out. Hear that Viz? We can't wait for you to catch up