Great deals of comments and research works about the author and the novel have sprung up from home and abroad to grasp the rich and elusive Moby Dick since early decades of the twentieth century, and this novel has been attached to a significant position in American literature. Generally speaking, there are lots of critical reviews, comments and articles study from different standpoints, such as the analysis on its chief themes and characters, structuralism, myth and archetypal criticism, as well as ecocriticism.