This small book is a successful attempt to present Hegel's philosophical system in a digestible manner: the author moves from the simple and concrete to the more complex and abstract, considering only the ideas that are important for understanding the philosopher.

Peter Singer is a professor of bioethics at Princeton University . His book Animal Liberation, which is sometimes called the “Bible of the modern environmental movement,” brought him worldwide fame. Singer's other works include Practical Ethics, Marx: A Brief Introduction, and several other works on ethics and philosophy. In addition, he authored the leading article on ethics in the modern edition of Britannica