Shakespeare has written so many novels. All are very popular and fantastic. I have read Othello, Hamlet, Kinglear and Macbeth only. In my opinion Othello is the most famous novel.
According to the genres Shakespeare had written, it all had got its immense popularity and even till today they are standing straight in the same position, but I don't think that he scarcely wrote novels, basically he is famous for his dramas.And among his all dramas, it could be either Hamlet or Othello, the most famous.
