The business of marketing the Bible and the Koran says a lot about the state of modern Christianity and Islam

CHRISTIANS and Muslims have one striking thing in common: they are both “people of the book”. And they both have an obligation to spread the Word—to get those Holy Books into the hands and hearts of as many people as they can. (The Jews, the third people of the book, do not feel quite the same obligation.)

Spreading the Word is hard. The Bible is almost 800,000 words long and littered with tedious passages about begetting. The Koran is a mere four-fifths of the length of the New Testament; but some Westerners find it an even more difficult read. Edward Gibbon complained about its “endless incoherent rhapsody of fable and precept”. Thomas Carlyle said that it was “as toilsome reading as I ever undertook; a wearisome, confused jumble, crude, incondite”.