I want to share my experience to any one who wants purchase books from XXX on Amazon website. I ordered on line around Aug 9 2010. I got class up on Aug 16. The book supposed arrive around my class up. Unfortunately, the post office lose the book. And I tried to hold on the XXX where I purchase my book on Amazon website, they said they are working on it. After a week later, I still couldn't get my book, then I email them again. They said they will send me another one to me pretty soon.They had the same answer as a week ago when I sent them the first email. My question is, how they take care customers???? They are keeping saying or "promising" that they will send me a book, but I never got it over a half month???!!!!! I just want my book.......waiting waiting until final maybe....