This comprehensive and well-organized book focusses on the phenomeno-logical aspects of Particle Physics. It strikes a fine balance between those texts that require sophisticated mathematical physics and those that are too elementary. For, unlike in many books on the subject, which give prominence to gauge theories, the attempt here is to lay stress on phenomenology _ an aspect that needs exposure among students of high energy physics. About The Author: M. P. KHANNA (PH.D., ROCHESTER, USA) is Professor, Department of Physics, Panjab University, Chandigarh. His various assignments have taken him to such places as Imperial College, London, University of Alberta, Canada, and International Centre for Theoretical Physics at Trieste, Italy. Professor Khanna has participated in a number of international conferences and seminars, and published over 90 research papers in reputed international journals like Physical Review Letters, Physical Review, Pramana, and International Journal of Modern Physics. Table Of Contents Preface. Introduction. Relativistic Quantum Mechanics. Symmetries. Unitary Symmetry. Quark Model of Hadrons SU(6). Hadron Currents. Nonleptonic Weak Interaction. Gauge Invariance. The Standard Model. Charm and Heavier Flavours. Recent Developments. Appendices A Elements of Group Theory. B Irreducible Spherical Tensors. C Noether's Theorem. D Relativistic Kinematics. E Decay Rates and Cross-Sections. F Gell-Mann Matrices. Bibliography. Index. .