Three-dimensional imaging of hadrons and quark orbital dynamics in Lattice QCD

Progress in the three-dimensional imaging of hadrons in Lattice QCD is described, focusing in particular on structure in the transverse plane. A continued effort of extracting TMD observables from Lattice QCD is reviewed, and an update on GPD moment calculations is given. These aspects of hadron structure find their synthesis in GTMD observables that encode, for example, quark orbital angular momentum, and thus provide insight into the proton spin puzzle; first results in this direction are also presented.