  The Chiral Perturbation Theory (ChPT) has been very successful in describing
low-energy hadronic properties in the non-perturbative regime of Quantum
Chromodynamics. The results of ChPT, many of which are currently under active
experimental investigation, provide stringent predictions of many fundamental
properties of hadrons, including quantities such as electromagnetic
polarizabilities. The paper outlines our semi-automated calculations in ChPT,
the corresponding results for the electric and magnetic polarizabilities of the
proton and our predictions for Compton differential cross sections.
