Cover arcs are stories that appear on the "cover" of each manga chapter of One Piece. These arcs tell stories of characters that the Straw Hats have met, usually telling the story of what happened afterwards. While these arcs did not usually feature the Straw Hats, that has changed as of chapter 543. Since this chapter, all of the cover arcs have been two-part cover arcs that have been used to tell the different adventures the different Straw Hats are having (except Luffy) since they were sent to different islands. The advantage to using cover arcs rather than normal manga chapters is that they take up space that would normally be used for just a picture and have recently been used to advance the story of the different straw hats. All of the cover arcs are canon and some have direct impact