Among faiths practised in the world today, the religion of Zarathushtra, also known as Zoroastrianism, is little known. Yet, at one time, it was the religion of the Persian empires that stretched across central Asia for a thousand years, and one that has left a timeless legacy of world religious thought. The message of Zarathushtra (or Zoroaster) is as relevant today as when it was revealed by the Prophet 3,500 years ago, and very much a living religion for the 275,000 Zarathushtis (or Zoroastrians) around the world who live and practice the faith today. This book is an easy-to-read introduction to the religion of Zarathushtra and the Zarathushtis. It presents the monumental saga of the faith and its peoples, from ancient origins in the cradle of civilisation, covering its doctrines and rituals, contributions, art and culture, down to contemporary practice and challenges.