Well Jump is like other マンガ Monthly または weekly magazines out there [Shonen Sunday, Shojo Beat, La La...] Basically it takes 人気 アニメ and マンガ series that relate to shonen または that are Shonen Jump mangas [If あなた own a volume of Bakuman, Nura,Bleach, Naruto, One Piece, Yu-Gi-Oh!, または Shaman King then look on the side and close to the 上, ページのトップへ あなた might see a "SJ" sign] and sticks chapters in them every week または month. With those マンガ series あなた get Shonen Jump! ^_^