Embark on a journey into the forefront of physics with ‘Relativistic Quantum Mechanics: An Introduction to Relativistic Quantum Fields.’ Authored by leading particle physicists, this classroom-tested text offers a clear path into the complex world of quantum field theory. Ideal for advanced undergraduates and graduate students, it builds upon your knowledge of classical mechanics, relativity, and quantum mechanics. Explore the fundamental theories of special relativity, the quantum formulation of fields using the Klein-Gordon and Dirac equations, and the foundational elements of the standard model, including quantum electrodynamics and Fermi’s theory of beta decay. Delve into timely topics like neutrino oscillations and discover essential insights for advanced theoretical and elementary particle physics. This introduction provides the foundation for understanding electroweak interactions and gauge theories.