Horror manga is a genre of Japanese comic books and graphic novels that focuses on frightening and unsettling themes. It often features supernatural elements, psychological terror, and graphic depictions of violence or death. Popular horror manga can evoke strong emotions and create a sense of dread, making it a unique form of storytelling. Notable creators in this genre include Junji Ito, known for his eerie art and disturbing narratives, and Kazuo Umezu, who is famous for his unsettling tales. Horror manga can be found in various formats, from serialized stories in magazines to standalone volumes, appealing to a wide range of readers.