Comic books have been a significant part of popular culture for nearly a century, with some issues achieving immense value due to their rarity, historical significance, or the first appearance of iconic characters. As a field expert in comic book history and valuation, I can provide an informed answer to your question.

The most valuable comic book is often considered to be Action Comics #1, which featured the debut of Superman. Published in 1938 by DC Comics, this comic is a cornerstone of the superhero genre. The value of this comic book can vary greatly depending on its condition. A near-mint condition copy of Action Comics #1 has been known to sell for millions of dollars. For example, in 2014, a copy graded 8.0 on the 10-point numerical scale of the Certified Guaranty Company (CGC) sold for $3.2 million.

However, there are other comic books that also hold significant value, such as Detective Comics #27, which introduced Batman, or Amazing Fantasy #15, the comic that launched Spider-Man into the world. The value of these comics is also influenced by factors like condition, rarity, and the presence of notable creators or storylines.

It's important to note that the comic book market can be volatile, and the value of any given comic can change over time due to various factors, including market trends, new discoveries, and the emergence of new collectors.

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World's most expensive comic book sells for $3.2M. An original copy of the Action Comics #1 that initially cost 10 cents and introduced Earth to Superman became the world's most expensive comic book Sunday when it raked in $3.2 million on eBay.read more >>