Utilitarianism is an ethical philosophy that promotes actions that foster happiness or pleasure, and oppose actions that cause unhappiness or harm. This philosophy works towards the betterment of the society when making social, economic and political decisions. Utilitarianism advocates that if a decision positively affects the maximum number of people, the decision should be accepted even if it negatively affects a small number of people. It can be viewed as a reason-based yet constrained approach for differentiating right from wrong. The limitations of this philosophy include justice and individuals’ rights. This book brings forth some of the most innovative concepts and elucidates the unexplored aspects of utilitarianism. It is appropriate for students seeking detailed information in this area of ethical philosophy as well as for experts.