With solid foundational knowledge against prejudices! The successful long-seller, completely revised and updated. A compact handbook with well-founded basic knowledge, clear and easy to understand. Developed by recognized experts and reviewed by Muslims. The encounter between Christianity and Islam is increasingly characterized by prejudices based on massive ignorance of each other. Only the dismantling of resentments, solid knowledge, and mutual respect can help improve the coexistence of Muslims and Christians. This is the goal of this handbook. In short, clear sections, it provides information about faith and life in Islam, its history, and present. Furthermore, it highlights the parallels between Islam and Christianity. The appendix offers a wealth of data and maps.