The Encyclopedia of Particle Physics was recently published; it is intended to provide an educational introduction to the field for a wider audience of physicists. The encyclopaedia is divided into sections on General Concepts, Hadron Physics, Electroweak and Higgs Physics, Neutrino Physics , Beyond the Standard Model and Experiments. It is particularly pleasing that the authors include a colleague from the Department of Theoretical Physics, Prof. Dr Saša Prelovšek Komelj, who wrote a chapter entitled Lattice QCD calculations of hadron spectroscopy, which introduces ab-initio theoretical studies of states composed of quarks. This four-volume set brings clarity to a complex and rapidly developing field and serves as an indispensable, comprehensive fundamental reference work to which researchers will return time and again. It contains approximately 165 chapters, written by world-leading experts in the fields of hadron and particle physics. Encyclopedia provides an overview of the large variety of ongoing and planned experiments in hadron and particle physics, including coverage of general experimental concepts across all existing major international facilities and experiments.