The printer needs to be very careful in choosing his type, realizing that the more often he is going to use it, the more closely its design must approximate to the general idea held in the mind's eye of readers perforce ruled by the familiar magazine, newspaper and book. It does no harm to print a Christmas card in

but who nowadays would read a book in that type? I may believe, as I do, that black-letter is in design more homogeneous, more lively and more economic a type than the grey round Roman we use, but I do not now expect people to read a book in it. Aldus' and Caslon's are both relatively feeble types, but they represent the forms accepted by the community; and the printer, as a servant of the community, must use them, or one of their variants. No printer should say, "I am an artist, therefore I am not to be dictated to. I will create my own letter forms," for, in this humble job, no printer is an artist in this sense. Nor is it possible today, as it just was in the infancy of the craft, to persuade society into the acceptance of strongly marked and highly individualistic types—because literate society is so much greater in mass and correspondingly slower in movement. Type design moves at the pace of the most conservative reader. The good type-designer therefore realizes that, for a new fount to be successful, it has to be so good that only very few recognize its novelty. If readers do not notice the consummate reticence and rare discipline of a new type, it is probably a good letter. But if my friends think that the tail of my lower-case r or the lip of my lower-case e is rather jolly, you may know that the fount would have been better had neither been made. A type which is to have anything like a present, let alone a future, will neither be very "different" nor very "jolly."

So much for Type. The printer possesses also Spaces and Leads as a normal part of his typographical material, straight lines of metal known as rules, braces, and finally a more or less indiscriminate collection of ornaments—head and tailpieces, flowers, decorated initial letters, vignettes and flourishes. Another decorative medium at his option lies in his command of colour; red is, with sound instinct, the most frequently used. For emphasis, heavy faces are used. White space is an important item of composing-room equipment—margins, blanks, etc., being filled in with what are known as "quotations." The selecting and arranging of these elements is known as Composition. Imposition is the placing of the composed matter upon the sheet. Printing includes impressing in due order, perfecting the sheet in due register (backing up), regulating the inking, and achieving a crisp type-page. Finally the tone, weight and texture of the paper are important factors entering into the completed result.

Typography, therefore, controls the composition, imposition, impression and paper. Of paper, it is at least necessary to demand that it be capable of expressing the value of the composition; of imposition, that the margins be proportionate to the area of the text, affording decent space for thumbs and fingers at the side and bottom of the page. The old-style margins are handsome in themselves and agreeable to the purpose of a certain kind of book, but are obviously not convenient in books where the page dimension is unavoidably small or narrow, or the purpose of the book is to be carried in the pocket. For these and other kinds of book, the type may be centred on the measure of the page, and slightly raised above ocular centre.

Imposition is the most important element in typography—for no page, however well composed in detail, can be admired if the mise-en-page is careless or ill-considered. In practical printing today, these details of imposition are on the whole adequately cared for; so that it is possible to report that the mass of books presents a tolerable appearance. Even a badly composed work may give a good appearance if it is well imposed—good imposition redeeming bad composition, while a good composition would be effectively ruined by bad imposition.

III

The designer of the book, therefore, first determines his imposition and then tackles the details of composition. The first principles of composition do not require much discussion since they necessarily follow from the conventions of alphabetical printing in the Roman letter accepted by those for whom we are printing. The matter is relatively simple. First, it is certain that the eye cannot read with ease any considerable number of words composed of letters embodying sharply contrasted thicks and thins; secondly, it is none the less certain that the eye cannot agreeably read a mass of words composed even in a rightly constructed letter, if the lines are beyond a certain length. The most expert reader's eye cannot seize more than a certain number of words in a given size except in a proportionate length of line. Thirdly, practice proves that the size of the letter must be related to the length of line. Respect for these principles will generally protect the reader from the risk of "doubling" (reading the same line twice). The average line of words which the reader's eye can conveniently seize is between ten and twelve. Nevertheless, the typographer, while exerting himself to the utmost to respect this ocular truth, is daily confronted with the fact that unavoidable conditions make it impossible for him to secure a type of the duly related size, and that he is driven to use a relatively small type. To obviate here the risk of "doubling," he consistently inserts proportionate leads through the matter, so opening the lines that the eye comfortably travels and returns from beginning to end and from end to beginning.

The practice of leading, denounced in certain quarters as essentially evil, is an inevitable necessity to a large proportion of printing; and the skilled typographer, making the best use of his material, makes in turn, wise use of leads. The orthodox high-brow view that leads produce in every instance an unhappy weak-looking effect will not survive a wide experience. On the contrary, it will be found that their absence may effectively ruin even a composition in large type, so that it is true to say that the intelligent use of leading distinguishes the expert from the inexpert printer. A slight differentiation of type-face may make the practice advisable. Clearly, while a letter of the size now under the reader's eye, with fairly long ascenders and descenders, would not require leading unless set to a measure of more than 3-1/2 in., there exist letters with short descenders designed rather to sustain leading by rule than by exception. Baskerville's is a type to which leading is invariably an advantage. The problem of determining the amount to be given is not to be settled by considering only the ascenders or the body of the type, because breadth of letter is also a factor to be reckoned with—some letters are narrow in respect to their height, while others are wide. A composition in a round, open, wide letter, chosen because it is rather loose (that is to say, the space between the letters is greater, or appears greater, by reason of the curves of the c, o, e, g), gains in consistency when there is a satisfactory lead between the lines. It is often argued that loose setting is not admirable in itself; to which it might be replied that the printer is generally bound to carry out the instructions of his customer; often to respect the wishes of an artist who may be illustrating the work; and, not seldom, committed by the publisher to a paper-size dictated by irrelevant considerations.

Further, it is obvious that the space between words composed in a condensed letter may be less than that between words in a round, wide form of letter. Where there is no leading between the lines, and the composition is, for extrinsic reasons, necessarily tight, it may be an advantage to set leads between the paragraphs, even though this result in pages with uneven tails. In paragraphing, it is important to realize that the opening sentence of a work should automatically manifest itself as such. This may be secured by the use of the large initial letter; the printing of the first word in CAPITALS, or SMALL CAPITALS; CAPITALS and SMALL CAPITALS; or by setting the first word into the margin. On no account should the opening of a chapter be indented, since indention should mark (and always mark) the subsequent sections, i.e., the paragraphs, of the text. The abolition of paragraph-indentions is plainly an undesirable practice; nor is setting the first word in capitals or small capitals an agreeable substitute for the indention. The space of the indention should be sufficient to be noticeable.