This is a practical, versatile, case-based introduction to bioethics for anyone who is interested in the ethical issues raised by modern medicine. It is designed to be used both for individual reference and as a set text in group teaching or open learning environments. The workbook is structured around a variety of guided activities designed to introduce and examine the major ethical questions. The activities are clustered around actual cases (provided by an international team of health care professionals), commentaries (from clinicians, ethicists and lawyers), and short papers. The range of problems covered includes ethical issues raised by new reproductive and genetic technologies, the rights of vulnerable groups, and allocation of scarce medical resources. The workbook will be invaluable to practitioners, medical and nursing students, and anyone who needs to develop skills in ethical analysis for clinical practice or research.