Transverse momentum (or QT) resummation is a powerful method to predict
differential distributions of elementary particles in quantum chromodynamics.
Its main features and differences from Monte-Carlo showering methods
are discussed in the brief overview of resummation theory.
Our group is actively involved in the development of
transverse momentum resummation methods in essential collider processes.
Details can be found at
http://hep.pa.msu.edu/resum.