Heritage Auctions has held a sale featuring comic book art, including original pieces by notable artists. The sale has surpassed $3 million, with individual items such as the original cover art for The Amazing Spider-Man #100 selling for $478,000, and other notable sales include a Frank Frazetta piece selling for $5.4 million. The auction has also featured art from various other comics, including X-Men, Batman, and Black Panther.