Graphic novels are basically long-form comics. They can tell complex stories through a combination of images and text. They're valuable because they offer a unique and engaging way to tell stories that can reach a wide audience, including those who might not be big readers of traditional books.
DC's 'Batman: The Dark Knight Returns' is extremely valuable. It's a masterpiece that influenced the entire superhero genre. Also, limited editions and first prints of popular series tend to hold high value due to their rarity.
Comics that are rare, have significant storylines, or feature the first appearance of popular characters tend to be valuable. For example, the first appearance of Superman in Action Comics #1 is extremely valuable because of its rarity and the importance of the character in the comic book world.
Well, it depends on various factors. Comics like Action Comics #1 featuring the first appearance of Superman or Detective Comics #27 with the debut of Batman are considered highly valuable. Their age, condition, and cultural impact all play a role in determining their value.
Some of the most valuable comic books include Action Comics #1 featuring the first appearance of Superman. It's rare and highly sought-after by collectors.