Sequential art is a term used to describe the combination of words and images in a graphic novel, where the images are arranged in a sequence to tell a story.

Romance is not a common genre of graphic novels, although there are some examples of graphic novels that incorporate romantic elements.

Will Eisner is considered to be one of the pioneers of the graphic novel, with his work 'A Contract with God' being credited as one of the first examples of the genre.

Graphic adaptation is the term used to describe a graphic novel that is adapted from a literary work, such as a novel, short story, or poem.

Maus is a graphic novel by Art Spiegelman that is an adaptation of his father's experiences as a Holocaust survivor.

Original graphic novel is the term used to describe a graphic novel that tells a story that is original and not based on a pre-existing work.

Saga is an original graphic novel series created by Brian K. Vaughan and Fiona Staples.

Mainstream graphic novel is the term used to describe a graphic novel that is published by a major comic book publisher, such as Marvel or DC Comics.

Watchmen is a mainstream graphic novel published by DC Comics.

Independent graphic novel is the term used to describe a graphic novel that is published by a small press or independent publisher.

Blankets is an independent graphic novel published by Top Shelf Productions.

Creator-owned graphic novel is the term used to describe a graphic novel that is written and drawn by the same person.

Maus is a creator-owned graphic novel written and drawn by Art Spiegelman.

Mature graphic novel is the term used to describe a graphic novel that is intended for a mature audience and may contain adult content.

Watchmen is a mature graphic novel that contains adult content, such as violence and profanity.