The book-writing machine works simply, at least in principle. First, one feeds it a recipe for writing a particular genre of book - a tome about crossword puzzles, say, or a market outlook for products. Then hook the computer up to a big database full of info about crossword puzzles or market information. The computer uses the recipe to select data from the database and write and format it into book form.

Parker estimates that it costs him about 12p to write a book, with, perhaps, not much difference in quality from what a competent wordsmith or an MBA might produce.

Nothing but the title need actually exist until somebody orders a copy. At that point, a computer assembles the book's content and prints up a single copy.