"Not only does the government printing office do a vast amount of printing for the use of the Washington authorities but it does a great deal of work for the country at large. Think, for instance, of the care and accuracy that goes into making out the United States census." "Not only care but paper and ink," laughed Paul. "All such tabulated documents consume quantities of paper," answered his father. "Directories, telephone books, circulars, and advertising matter in general demand tons and tons of paper every year, and the printing of them provides employment for hundreds of printers. As time goes on, more and more business is annually transacted by mail. The country is so tremendous and the expense of sending out salesmen to cover it so great that merchants now do much of their selling from mail-order catalogues. Many of these books are very attractive, too. A careful reproduction of the object for sale is made and the photograph sent broadcast to speak for itself. Jewelry firms issue tempting lists of their wares; china and glass dealers try to secure buyers by offering alluring pages of pictures, many of them in color; dry goods houses send out photographs of suits, hats, and clothing of all sorts. You have seen scores of such books and know how they are indexed and priced. In fact, there are commercial firms whose mail-order department is a business in itself, catalogues entirely supplanting salesmen. It is a much cheaper, wider-reaching means of selling, and often the results are quite as good as are the more old-fashioned methods. Now that artistic cuts can be reproduced with comparatively little expense this means of advertising is becoming more and more popular. Many charities annually make their appeal for funds by leaflet or card; stocks are offered to customers; your patronage to theaters, entertainments, and hotels is thus solicited. The combination of low postage rates and wide mail distribution is accountable for an almost overwhelming amount of printed business being transacted. Then, too, the mail is a great time-saver, or should be, an advantage to be considered in our busy, work-a-day world." "But people don't read half the stuff they get through the mails," said Paul.