Group Theory in Physics - An Introduction is an abridgement and revision of Volumes I and II of the author's previous three volume work Group Theory in Physics. It has been designed to provide a succinct introduction to the subject for advanced undergraduate and postgraduate students, and for others approaching the subject for the first time. It aims to present all the relevant important mathematical developments in a form that is easy for physicists to understand and appreciate.

The treatment starts with the basic concepts and is carried through to some of the most significant developments in atomic physics, electronics energy bands in solids and the theory of elementary particles. No prior knowledge of group theory is assumed, and for convenience, various relevant algebraic concepts are summarised in appendices.