Borders for illustrations should be in keeping with the style of the illustration.

Fig. 54.

Chapter headings may be either well-arranged lettering enclosed within a border, or the lettering may be placed on a scroll, cartouche, etc. Another form may be that in which a picture is incorporated with the decoration. Generally, chapter-headings are used more in magazines than in books. If one is designed for a special page in a magazine it should be definitely for that particular page.

When making a design that is to be reproduced in two colours, in which both colours are distinct—i.e., they do not overlap—the drawing should be made all in black. A sheet of tracing-paper is then pasted on the top edge at the back and folded over on the face of the drawing. The parts that are intended to be printed in the second colour should then be painted in with vermilion on the tracing-paper. This indicates to the block-maker the parts to cut out when making the blocks. The reason for doing this is because it is much easier to make the line-blocks from the drawing if it is all in black. Of course, this only applies when the two colours are quite distinct. When they overlap, the best way is to make two separate drawings in black. This can be done quite well by making a pencil drawing first, then painting in one colour in black on this drawing; the second colour is then painted on a piece of tracing-paper which is placed over this drawing for the time being. A small cross should be placed at each corner of the drawing and traced through on to the second one to act as register marks for the block-maker.

Generally speaking, all designs for book-decoration should be in line. The great disadvantage of the half-tone process is that the blocks cannot be printed well on a paper that has the slightest tendency towards being rough on the surface. The best results are undoubtedly produced when they are printed on art paper. Art paper is, however, far from durable, and should not be used for books that are required to be lasting. Apart from this, the half-tone process is not nearly so satisfactory as the line process. A good line block will give a fairly faithful reproduction of the original drawing without losing detail. This cannot be altogether claimed for the half-tone process. Three-colour process blocks, being a development of this, are open to the same objections. When the student has seen some of his work reproduced by these processes he will be able to appreciate the difference.

If colour is required in the decoration, a much more satisfactory form of colour reproduction is that produced from several line blocks, but, of course, if this process is used there must be no attempt at wash effects.

This chapter is intended to be merely suggestive of the developments in printed book-decoration that ought to be quite possible for the modern illuminator.