Charmonium and X, Y, Z at Belle

We report results of a study of charmonium and X, Y states using the world-largest data sample accumulated with the Belle detector at the KEKB asymmetric-energy e + e -collider.We present results from a study of X(3872)→J/ψπ + π -decays produced in exclusive B→Kπ + π -J/ψ decays.We report a study of B→(J/ψγ)K and B→(ψ'γ)K decay modes.We measure the cross section for e + e -→π 0 π 0 J/ψ from threshold up to 6 GeV using initial state radiation events from e + e - annihilation at √s=10.58 GeV.Using this data we search for evidence of Y(4260) decaying to π 0 π 0 J/ψ.We report the results of a study of B ± →K ± η c and B ± →K ± η c (2S) decays followed by η c and η c (2S) decays to (K S Kπ) 0 .