Orthodoxy (1908) is a book by G. K. Chesterton that has become a classic of Christian apologetics. Chesterton considered this book a companion to his other work, Heretics. In the book's preface Chesterton states the purpose is to "attempt an explanation, not of whether the Christian Faith can be believed, but of how he personally has come to believe it." In it, Chesterton presents an original view of Christian religion. He sees it as the answer to natural human needs, the "answer to a riddle" in his own words, and not simply as an arbitrary truth received from somewhere outside the boundaries...

Though he was on the whole a fun loving and gregarious man, during adolescence Chesterton was troubled by thoughts of suicide. In Christianity he found answers to many of the dilemmas and paradoxes of life. Throughout Heretics he provides a very personal critique of contemporary religious notions. His consistently engaging but often wayward humour is mixed liberally with daring flights of fancy and some startling turns of thought. A highly original collection of essays, providing an invaluable contribution to one of the major debates of the last century - one that continues to exercise...