Applied ethics has become established as a distinct area of study, but its methodology and practicality are still matters of controversy. This collection examines how the field has developed over the last fifty years, by bringing together those articles that have been seminal in the development of the subject. The focus of these volumes is on the different types of approach to the subject, the areas in which it has been most active, and ways in which the field has expanded. Each of the six volumes carries an introduction to provide the reader with the historical context of the material, and a new index is provided to identify key philosophical themes and trends within the collection.