As noted in the preface for the current book, case reports are only one of various requirements the Board has in place to ensure applied psychological competence and thus ultimately how the Board protects the public from substandard care. Case reports or studies demonstrate how case conceptualisation, theory, and related treatments as well as interventions are applied in individual circumstances. Creating such material can assist practitioners to crystallise their case formulations and make overt or objective client related applications. The ‘how’ of client work is thus illustrated along with the ‘why’ and details of to ‘whom’ and ‘when’ are outlined. Case material creation is consequently a major way in which psychologists can advance as well as demonstrate their applied skills. Similarly, case material consumption illustrates to the consumer how psychology works in practice. Case reports or studies can thus help practitioners both demonstrate and understand how psychology works in practice.