A graphic novel is like a big comic book with a story that can be really long and complicated. Instead of just having short, funny stories like a regular comic book, a graphic novel can have a lot of different characters, places, and events that all happen in one big story. It's like a book with pictures, and the pictures help to tell the story just as much as the words do. So when you read a graphic novel, it's like you're watching a movie in your head because you can see everything that's happening as the story goes along. Overall, a graphic novel is a fun way to read a big story that's full of excitement and adventure!