The Jobava London is a London System with the knight on c3 instead of f3. The c3-knight and the f4-bishop both aim at c7, so Nb5 is a threat from move three on, and Black has to react to it. The games are usually closed or semi-open, but sharper than in the normal London: f3 with e4, or g4 and h4 against a bishop on g6, are common plans.