Publisher Shueisha Inc. took out full-page ads in The New York Times and The China Times to celebrate One Piece's position as the bestselling manga of all time, with more than 300 million copies in print in Japan, and 345 million worldwide.

According to The Japan Times, the company launched a similar campaign across that country on Nov. 1, when the 72nd volume of the pirate adventure was released.

Illustrated by One Piece creator Eiichiro Oda, the ads proclaim, "Hey, World, This Is The Manga!” U.S. readers are directed to Viz.com, the website Viz Media, for "free previews and more." (The San Francisco-based company is jointly owned by Shueisha, Shogakukan and the latter's licensing division ShoPro Japan.)

Viz is marking the milestone with a free digital retrospective that features an interview with Oda, a gallery of the manga's first 69 covers, color artwork, and a new One Piece chapter from Japan's Weekly Shonen Jump.

“One Piece has achieved something very significant, and the sales milestone speaks to the strong international appeal of the enduring characters and gripping story that Eiichiro Oda created that are universally loved in multiple countries by millions of fans of all ages,” Andy Nakatani, editor-in-chief Weekly Shonen Jump, said in a statement. “The continuing spread of digital technology will bring these action packed high-seas adventures to even more readers."

(New York Times ad via Crunchyroll)