A survey of Islam, and its relations to Christendom. The history, distribution, doctrines, and practice of Islam - with an argument that the utter unlikeness of Allah is equivalent to agnosticism. The social ideal of Islam, and its social practice - with emphasis on the unpleasant position of women. Contacts of Christianity with Islam: brief mentions of al Kindi, Francis of Assisi and Francis Xavier, but the history leaps from Lull in the thireteenth century to Martyn in 1806 to Pfander and the literally short-lived efforts of Valpy French and Keith Falconer. Methods of Christian approach, not all for professed missionaries: evangelism, medical work, women's work, educational work, literature and approaches to children. Leak proclaims the successes in Egypt, Afghanistan, and Indonesia, and adds an appendix on changes since the Great War. A useful background to any student of Chistian missionary work - or the reaction to it.