Values-based practice (VBP) is a framework of clinical theory and skills to facilitate a good process whereby the (often conflicting) values involved in clinical decision-making can be recognised and balanced productively. Many of these values come from the personal histories of the patient and of the clinician, and the traditions and history of psychiatry. New developments in science lead to increasing choice and increasing complexity of values. Therefore, psychiatrists will need more skills in this area, as reflected by the inclusion of VBP in the Royal College of Psychiatrists’ training curricula. This article describes some tools for understanding and navigating this value diversity in applying science to clinical practice during history taking.