This series of complete works is an introduction and a detailed discussion of the influence of Christianity on all levels of the world and the inextricable relationship between the environment and religion, especially the world's largest Christianity, with 2.2 billion believers worldwide. A person who does not understand religion, especially Christianity, cannot properly understand our world, cannot adapt to many things, and even makes wrong decisions in many aspects. This series of collections are aimed at people from all walks of life, regardless of their beliefs or non-beliefs, to understand and study the role of Christianity and other major religions in international relations within and outside countries and predict their impact and prospects in various social fields. The development of society has important reference value. This series of complete works consists of ten books, and each book has an introduction summary at the beginning, and the order is arranged according to the first word of English: 1. Christianity and World Civilization 2. Christianity and World Culture 3. Christianity and World Economy 4. Christianity and World History 5. Christianity and World Law 6. Christianity and World Outlook 7. Christianity and World Peace 8. Christianity and World Politics 9. Christianity and World Religions 10. Christianity and Universal Values