This book focuses on the basics of particle physics, while covering as many frontier advances as possible.The book introduces readers to the principle of symmetry, properties and classification of particles, the quark model of hadrons and the interactions of particles. Following which, the book offers a step-by-step presentation on the unified theory of electromagnetic and weak interaction, as well as the gauge theory of strong interaction: quantum chromodynamics (QCD).In sequential order of the book's development, readers will study topics on the deep inelastic scattering and parton model,...