In this book, author Gary Wysin provides an overview of some model systems and their behaviour and effects. Intended for advanced students and researchers in physics, chemistry and engineering, which are interested in confined magnetics either to form a purely theoretical point of view or to consider properties for potential novel applications. It is also suitable as an auxiliary text in a class on magnetism or solid state physics. Some previous physics knowledge is expected, including the understanding of classical Hamiltonian mechanics, basic ideas about quantum spin, and statistical physics. Some of the later chapters consider electromagnetic effects in magnets in metals, where some basic knowledge of classical electromagnetism and electromagnetic waves is needed.