Well, manga typically has a more serialized format, with ongoing storylines and frequent releases. Graphic novels are usually standalone or have a limited series. Also, manga often focuses on specific genres like fantasy and action, while graphic novels cover a broader range of topics and genres.
The main difference is that manga originated in Japan and often has a distinct art style and story-telling conventions. Graphic novels, on the other hand, can come from various countries and have more diverse styles and themes.