Magnetochemistry is the study of the magnetic properties of materials. It is of central importance in the study of transition-metal complexes, providing information on the chemical bonding in these molecules. This new title in the Oxford Chemistry Primers series provides an introductory survey of the magnetic properties of chemical compounds with a particular focus, later in the book, on paramagnets. It also illustrates the applications of both susceptibility measurements and EPR spectra in the characterisation of electronic structures. The uses of ordered materials in magnetics technology are highlighted throughout. The author carefully introduces all the physical concepts that underpin the subject, fully equipping the reader for the study of more advanced material in the literature of both Chemistry and Materials Science.