Daniel Casey works as a Specialty Registrar in Old Age Psychiatry in Oxfordshire and Berkshire, UK. He completed a Fellowship in Interventional Psychiatry in Oxford focussing on ketamine and neuromodulation. He has experience in pharmaceutical medicine and drug development.Bart Sheehan is a Consultant Psychiatrist at the John Radcliffe Hospital in Oxford, UK. For over two decades he has worked in NHS services for older people in the community, inpatient psychiatric wards, care homes and the general hospital. He teaches and supervises students and trainees. His research has focused on trials of complex interventions for depression, dementia, and long COVID. His starting point is that referral of a 'confused' older person is an opportunity to add value; with accurate diagnosis, prognosis and management.

• 1: Introduction 2: Dementia 3: Delirium 4: Mania and depression 5: Anxiety and behaviour disorders 6: Paranoid illness and schizophrenia 7: Services 8: Ethical and legal issues 9: Prescribing issues in older people