Canonical quantization of fields
Chapter in QUANTUM FIELD THEORY FOR THE GIFTED AMATEUR, (2014) 98-108
Continuous systems
Chapter in QUANTUM FIELD THEORY FOR THE GIFTED AMATEUR, (2014) 50-58
Discrete transformations
Chapter in QUANTUM FIELD THEORY FOR THE GIFTED AMATEUR, (2014) 135-142
Examples of Lagrangians, or how to write down a theory
Chapter in QUANTUM FIELD THEORY FOR THE GIFTED AMATEUR, (2014) 64-69