Sophie's World: A Novel about the History of Philosophy

"Sophie's World: A Novel about the History of Philosophy" is a book written by Norwegian author Jostein Gaarder, first published in 1991. The book has been translated into more than 60 languages worldwide and has become a bestseller.

The story revolves around a teenage girl named Sophie Amundsen, who receives mysterious letters that lead her on a journey to learn about the history of philosophy. Her journey is guided by a mysterious philosopher named Alberto Knox, who teaches her about the great philosophers throughout history, from Socrates to Nietzsche.

As Sophie learns about the history of philosophy, she discovers that her own existence is part of a larger experiment, aimed at teaching philosophy to children. The novel explores various philosophical concepts and theories, including existentialism, metaphysics, and ethics.

The book is a fascinating and entertaining read that provides valuable insights into the history of philosophy and philosophical concepts. It is also a great introduction to philosophy for those who are new to the subject. "Sophie's World" has won numerous awards and accolades, and has become a modern classic of philosophical literature.