Every author as he brings out his handy work into this word, hopes that someday his book would cross the million reader mark and that he could then boost of belonging to the club of author who has written books that have sold a million copies.
But there have been some authors whose works came out as a means of their persona expression without any aspirations of joining any club and in the end, ended up sellion a billion copies.
A case can be made of the famous fantasy author, J.K Rowling who sold over 350 Million books on the wizarding world, giving the world a 7-books Series on the much loved wizard Harry Potter.
But the one author who is known to have sold more books that any one has of course been the queer of suspense and thriller, Agatha Christie herself, whose works have been bought for over 2 billion times.
