There is a plethora of literature on person-centred care and its importance in health care. The principles of person-centred care are especially important for people living with dementia because of the clinical manifestations of the disease. This article intends to provide nurses with an overview of the work of Tom Kitwood and how it pertains to providing best practice in dementia care. Various person-centred theories have been developed. However, Kitwood’s work is by far the most widely referred to in dementia care. An understanding of Kitwood’s ideas, in particular those of malignant social psychology and positive person work, enables nurses to develop competence in delivering optimum person-centred care to people with dementia in clinical practice.