A comic novel is a novel-length work of humorous fiction. Many well-known authors have written comic novels, including P. G. Wodehouse, Henry Fielding, Mark Twain, and John Kennedy Toole. Comic novels are often defined by the author's literary choice to make the thrust of the work—in its narration or plot—funny or satirical in orientation, regardless of the putative seriousness of the topics addressed.[1]
Novels, books, plays, and many works of fiction or art can certainly contain and include passages or themes that are comic, humorous or satirical, but the defining characteristic of this genre is that comedy is the framework and baseline of the story, rather than an occasional or recurring motif. It is the through-line and organizing genre for the novel's tone, orientation and sensibility. A reader is not expected to 'find' or 'discover' a humorous moment within the reality of the text, rather, humor is the ongoing mood, like a comedy movie, rather than a movie that has some comedy or laughs within it.
Literary scholars distinguish textual analysis on this basis; the theory being that a story by Mark Twain that is a satirical critique in its very origin, for example, must be understood differently than a more literal novelistic plot.