This document presents a selection of QCD studies accessible to high-precision studies with hadronic final states in e + e − collisions at Belle II. The exceptionally clean environment and the state-of-the-art capabilities of the Belle II detector (including excellent particle identification and improved vertex reconstruction), coupled with an unprecedented data-set size, will make possible to carry out multiple valuable measurements of the strong interaction including hadronic contributions to the muon (g − 2) and the QCD coupling, as well as advanced studies of parton hadronization and dynamical quark mass generation.