John Stuart Mill's Utilitarianism is not just a philosophical treatise, but an in-depth study of the moral principles that define our behavior and societal norms. Written in 1863, this work remains relevant to this day, offering readers the opportunity to reflect on what happiness is and how it can be achieved within society. Mill, one of the most influential philosophers of his time, seeks to explain utilitarianism, the ethical theory that the right actions are those that contribute to the greatest happiness of the greatest number of people. In Utilitarianism, Mill not only expounds the basic principles of his philosophy, but also responds to the criticism that this concept faces. It looks at how utilitarianism can be applied in everyday life, and invites readers to ask themselves a question. what really makes life happy? This is not just theoretical reflection, but a practical guide that encourages active reflection on moral dilemmas and ethical choices. The book will be of interest to a wide audience: from students of philosophy and sociology to anyone who seeks a deeper understanding of human nature and moral values. If you are interested in ethics, social justice or just want to better understand how to make decisions based on principles that can benefit society, “Utilitarianism” will be a real discovery for you. The topics raised in the book cover a wide range of issues, from individual happiness to the public good, from personal responsibility to collective action. Mill explores how personal interests can be harmonized with the interests of society, and invites readers to reflect on how their actions can affect others. In this context, he raises important questions about justice, freedom and equality, which makes his work particularly relevant in today's world, where these topics continue to cause heated debate. Mill's style is clear and logical, which makes his ideas available to a wide audience. He skillfully combines philosophical reflections with practical examples, which allows the reader not only to understand, but also to feel how utilitarianism can be applied in real life. In this respect, his work echoes other well-known works, such as Immanuel Kant's Critique of Practical Reason and Benedict Spinoza's Ethics, but in doing so Mill offers a unique perspective on ethical issues based on the pursuit of happiness. Readers who seek deep reflections on morality and ethics will undoubtedly find in Utilitarianism many ideas for reflection. This book will not only be a source of knowledge, but also an incentive for personal growth and self-reflection. If you want to understand how philosophy can influence everyday life and how ethical principles can be applied in the modern world, John Stuart Mill's Utilitarianism is a must read. Thus, “Utilitarianism” is not just a philosophical work, but a real find for all who seek to understand human nature and the moral foundations of society. This book will be your guide to the world of ethics, helping you to understand the complex issues that concern humanity for centuries. Do not miss the opportunity to discover ideas that can change your perception of the world and your role in it.