We review the modern status of QCD theory of diffractive vector meson produ
ction with the focus on shrinkage of photons with Q(2) and (Q(2) + m(V)(2))
scaling, j-plane properties of the QCD pomeron and Regge shrinkage of diff
raction cone, s-channel helicity non-conservation and sensitivity to spin-o
rbital properties of vector mesons.