: Once niche, these have become cultural juggernauts. Manga sales in the U.S. quadrupled between 2019 and 2022, while the global anime market doubled in size over a decade to reach $20 billion .
Manga often serves as the "storyboard" for anime. Successful series like One Piece or Demon Slayer create a feedback loop of merchandise, movies, and theme park attractions. : Once niche, these have become cultural juggernauts