Graphic novels, different than chapter books or picture books, are available for all ages - including children, tweens (called middle grade here), and teens. linked below are some search suggestions to finding these books in library.
Search by keyword, topic, or title. Or consider using the Subject Heading searches linked below.
Consider the links on this page for resources on graphic novels for tweens and children, but know also that there is a whole guide dedicated YA Literature which includes information on YA Graphic Novels. subject. There you can find similar sources, background info, articles from books, magazines, newspapers, journals, and more.