The evolving term graphic novel is not strictly defined and is sometimes used, controversially, to imply subjective distinctions in artistic quality between graphic novels and other kinds of comics. It suggests a complete story that has a beginning, middle and end, as opposed to an ongoing series. It can also imply a story that is outside the genres commonly associated with comic books, or that deals with more mature themes. It is sometimes applied to works that fit this description even though they are serialized in traditional comic book format. The term is sometimes used to disassociate works from the juvenile or humorous connotations of the terms comics and comic book, implying that the work is more serious, mature, or literary than traditional comics. Following this reasoning, the French term Bande Dessinée is occasionally applied, by art historians and others schooled in fine arts, to dissociate comic books in the fine-art tradition from those of popular entertainment, even though in the French language the term has no such connotation and applies equally to all kinds of comic strips and books.
In the publishing trade, the term is sometimes extended to material that would not be considered a novel if produced in another medium. Collections of comic books that do not form a continuous story, anthologies or collections of loosely related pieces, and even non-fiction are stocked by libraries and bookstores as "graphic novels" (similar to the manner in which dramatic stories are included in "comic" books). It is also sometimes used to create a distinction between works created as stand-alone stories, in contrast to collections or compilations of a story arc from a comic book series published in book form.[3][4]
Whether manga, which has had a much longer history of both novel-like publishing and production of comics for adult audiences, should be included in the term is not always agreed upon. Likewise, in continental Europe, both original book-length stories such as La rivolta dei racchi (1967) by Guido Buzzeli,[5] and collections of comic strips have been commonly published in hardcover volumes, often called "albums", since the end of the 19th century (including Franco-Belgian comics series such as "The Adventures of Tintin" and "Lieutenant Blueberry", and Italian series such as "Corto Maltese").
Link [http://en.wikipedia.org/wiki/Graphic_novel]