One Piece is one of the longest-running shonen titles in the world, boasting an episode and chapter count over 1,000. It's one of the most popular series in manga history for a number of reasons, but one thing that fans find most appealing about the epic high-seas adventure is the art style of mangaka Eiichiro Oda.
Source:https://www.cbr.com/one-piece-anime-changes-fan-backlash-why-episode-1033/