How accessible is Jojo? I've only ever watched one other anime and that was Attack on Titan (mercy on me soul) and was wondering if I could could just sit down and watch Jojo without any prior knowledge?
A "Part" in jojo means a different era of time, different protagonist and all round different stories which are all linked by the same bloodline and some knock on cause and effect of the other previous parts.
Like Johnny said - it's gay to skip any of them ...
As for how accessable, pretty much every possible website that hosts anime is bound to have jojo. And if you wish to know how it goes, JJBA 2012 => JJBA Stardust Crusader => JJBA SC Season 2 => JJBA Diamond is Unbreakable => JJBA Vento Aureo (Yet to be aired)
There are a few "Episodes" from the 90's but it's not an actual series ...