This document provides an overview of ethical theories, including descriptive ethics, normative ethics, and applied ethics. It discusses consequentialist theories like ethical egoism, ethical altruism, and utilitarianism, which focus on the outcomes of actions. It also covers non-consequentialist theories like deontological theories and virtue ethics, which emphasize duties and virtues rather than consequences. The document is intended as a module on lifeskills and ethics presented by an assistant professor at a technical institute in India.