In Moby Dick Melville set out to write a "mighty book" on "a mighty theme." The editors of this critical text affirm that he succeeded. Nevertheless, their prolonged examination of the novel reveals textual flaws and anomalies that help to explain Melville's fears that his great work was in some ways a hash or a botch. A lengthy historical note also gives a fresh account of Melville's earlier literary career and his working conditions as he wrote; it also analyzes the book's contemporary reception and outlines how it finally achieved fame. Other sections review theories of the book's genesis, detail the circumstances of its publication, and present documents closely relating to the story.