Proper Japanese Title: ヤングジャンプ
After Weekly Shonen Jump, Weekly Young Jump is generally considered Shueisha's second most popular magazine in recent decades (being the only two weeklies, though Young still only has a fraction of the sales of Shonen which is known for being one of the most popular manga magazines of all time).
Being a seinen manga anthology, Young Jump is aimed at an older male audience than Shonen Jump, specifically young adults and sometimes businessmen, which is why many of its best-known series can be quite dense or based deeply in historical details; or on the other end of the spectrum, be quite violent or sexual. Young Jump is much less harsh on new series than its Shonen counterpart, giving new series much more of a chance to prove themselves which results in a higher average length of serials.
Though Shonen Jump's biggest successes sell much better, Young Jump has numerous titles that lasted for a few dozen volumes despite not having the same crossover success, though some of the best-selling seinen franchises of all time were from Young Jump such as Kingdom, Gantz and Salaryman Kintarō.
As part of Young Jump being less harsh than Shonen Jump, it is also much more likely to have series that go on hiatus or are published irregularly and commonly individual issues have no content from multiple serials that were ongoing at the time. Also, like the general seinen market, successful sequels can be quite common, and its common for a successful series to be followed up by a sequel shortly after its end in the same magazine (whereas sequels to Shonen Jump titles are usually printed in another magazine).
Though initially covers of the series were more "comic-esque" (often featuring the magazine mascot Buddy Bear), since the 90's the majority of the covers feature gravure idols, often in swimsuits. The magazine has come to market itself as being for two separate audiences, the readers of the manga and the fans of the models, even separating its own website into two.
Though the covers are usually human models, they only take up a few pages of each issue, while the manga takes up a few hundred. In this way, Young Jump serves as an inverse of Weekly Playboy (also published by Shueisha) which is only a few pages of manga and much more focused on the idols and a more typical pop culture magazine format.
As one of the biggest franchises at Shueisha, Young Jump has had a number of spin-off magazines, though most have only lasted a few years. Spin-offs have included Miracle Jump, Jump X, Aoharu, Ultra Jump and Monthly Young Jump (most of which have shared serials with Weekly Young Jump at some point).
Some of the more notable series' to be serialized in this magazine include: