According to the Oxford English Dictionary, a "graphic novel" is a a full-length story published as a book in comic-strip format. But they are so much more than that! Graphic Novels are a format, not a genre. Graphic novels can be fiction, non-fiction, history, fantasy, or anything in-between. Graphic novels are similar to comic books because they use sequential art to tell a story. Unlike comic books, graphic novels are generally stand-alone stories with more complex plots. Collections of short stories that have been previously published as individual comic books are also considered graphic novels. (From https://www.buffalolib.org/get-graphic/what-graphic-novel)
Need a recommendation? Ask Sarah Gewirtz, Social Sciences Librarian or Annie Larson, Humanities Librarian.