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Mere Christianity; a revised and enlarged edition, with a new introduction… (original 1952; edition 1952)
by C. S. Lewis
Mere Christianity by C. S. Lewis (1952)
Is contained in
Amazon.com Amazon.com Review (ISBN 0060652926, Paperback)In 1943 Great Britain, when hope and the moral fabric of society were threatened by the relentless inhumanity of global war, an Oxford don was invited to give a series of radio lectures addressing the central issues of Christianity. Over half a century after the original lectures, the topic retains it urgency. Expanded into book form, Mere Christianity never flinches as it sets out a rational basis for Christianity and builds an edifice of compassionate morality atop this foundation. As Mr. Lewis clearly demonstrates, Christianity is not a religion of flitting angels and blind faith, but of free will, an innate sense of justice and the grace of God.
(retrieved from Amazon Tue, 31 Aug 2010 22:19:10 -0400)
Discusses the essence of Christian faith and the doctrine of the Trinity.
(summary from another edition)