One of the most popular and beloved introductions to Christian faith ever written Mere Christianity has sold millions of copies worldwide. The book brings together Lewis' legendary broadcast talks of the war years, talks in which he set out simply to "explain and defend the belief that has been common to nearly all Christians at all times." Rejecting the boundaries that divide Christianity's many denominations, Lewis provides an unequaled opportunity for believers and nonbelievers alike to hear a powerful, rational case for the Christian faith. HarperOne, softcover, 256 pages.