The Need for Quantum Mechanics -- Self-adjoint Operators and Eigenfunction Expansions -- Simple Model Systems -- Notions from Linear Algebra and Bra-Ket Formalism -- Formal Developments -- Harmonic Oscillators and Coherent States -- Central Forces in Quantum Mechanics -- Spin and Addition of Angular Momentum Type Operators -- Stationary Perturbations in Quantum Mechanics -- Quantum Aspects of Materials I -- Scattering Off Potentials -- The Density of States -- Time-Dependent Perturbations in Quantum Mechanics -- Path Integrals in Quantum Mechanics -- Coupling to Electromagnetic Fields -- Principles of Lagrangian Field Theory -- Non-relativistic Quantum Field Theory -- Quantization of the Maxwell Field: Photons -- Quantum Aspects of Materials II -- Dimensional Effects in Low-dimensional Systems -- Relativistic Quantum Fields -- Applications of Spinor QED.