  This is a preprint of an open-access book published by Springer Cham. The
book gives an up-to-date overview of the physics of spontaneously broken
continuous symmetry from the point of view of effective field theory. Upon
building up the necessary foundations, the text reviews the classification of
Nambu-Goldstone bosons and then focuses on the construction of the
effective-field-theoretic description of their dynamics. Both internal and
spacetime broken symmetries are covered, including numerous illustrative
examples and a few selected applications, worked out in greater detail.
