Islam has been a great force in world history. Within a few centuries after the death of Mohammed in A.D. 632 the Islamic creed had spread across half the world and obtained a powerful hold over millions of people. The present set published as a multivolume collection contains very rare and remarkable works on Islam. An attempt has been made to trace its origin and history. The endeavour is to elucidate the true place of Islam in the history of religions. The present work will be of immense help both to scholars and layreaders.