2. A graphic novel is a fictional story that is presented in comic-strip format and published as a book. While a comic book is a magazine containing sequences of comic strips —usually hyphenated in attributive use. So the Graphic novels are usually longer and more complex then comic books.
3. In comic books panels have any design or layout the artist wants, while the same for graphic novels the panel sizes have a wider variety and so do the shapes. Newspapers usually stick to multiple rows with the same size panels.