Are Mangas Books Novels & Stories

The reason why Kiriya asked this question was that he wanted to know what kind of books or literary works that Monica and Nana loved to read, after all, this place was a literature club so all they did was related to literature. "Hmm... book?" Nana rubbed her chin and said, "I like manga." Kiriya and Miu were silent and speechless when they heard Nana's words. Even though Nana was smart, she didn't really like to read serious literature works, or rather she only read her textbooks and manga, besides that, she loved to play games.