An introduction to Islam -- Muḥammad the prophet -- Muhammad the man -- Foundation of Islam : the Qur'ān -- The fundamentals of Islam : beliefs -- The fundamentals of Islam : obligations -- Solidarity through institutional unity -- Heterodoxy and orthodoxy -- Formalism and free expression -- "Medievalism" and the dawn of "renaissance" -- Resilience and dynamism -- Current trends -- Footnotes -- Glossary -- Recommended reading.