  Jet quenching in high-energy heavy-ion collisions can be used to probe
properties of hot and dense quark-gluon plasma. We provide a brief introduction
to the concept and framework for the study of jet quenching. Different
approaches and implementation of multiple scattering and parton energy loss are
discussed. Recent progresses in the theoretical and phenomenological studies of
jet quenching in heavy-ion collisions at RHIC and LHC are reviewed.
