It is necessary at this point to allude to the dictum—voiced in high places as well as in low—that a book is primarily something to be read; that every factor which does not contribute to that end is an impertinence. The worthy champions of this faith would be on firmer ground if they heaped their condemnation upon such adjuncts of a book as actually lessen its readability. M. Paul Valéry has disposed of the matter so effectively from the aesthetic point of view in his essay, Les deux vertus d'un livre, that nothing remains to be said on that side of the question. But there are other objections to be raised to this ipse dixit of the mechanists. Their contention that what we all grant is at once the basic and paramount function of a book, its readability, is its only function would, if carried to its logical conclusion, lead to a doctrine in book design equivalent to what is known in present-day architecture as "functionalism." Since functionalism or, as it is sometimes called, the "machine and function" principle, demands that the design of a building must grow out of and be restricted by its predetermined use or purpose, it should follow that, if the sole purpose of a book is that it be something to read, there is no reason, based upon utility, for not using the whole area of the paper-page, with margins of no more, let us say, than a quarter of an inch or so. The uncomely, marginless illustrations of certain recent books represent an application of this principle. If the protagonists of the utilitarian ideal admit that margins are other than a waste of usable space, they make a concession to the aesthetic conception of a book, for the determination of margins, the mise en page, is primarily an element of design. It will be argued no doubt, in contravention of this statement, that margins make for ease of reading (utility), but that this is an untenable defensive assumption should be proved by the perfect readability of newspaper columns separated only by a light rule, or by the two-column book or magazine page with only a pica of white between the columns. Since it cannot be denied that the margins of a book, if well proportioned, promote pleasure, an aesthetic function, the true functionalist should, to be consistent, insist upon doing away with them.

We may turn now from that major fundamental of the fine book—a text-page of perfect seemliness—to a consideration of other elements. But before doing so, it may be proper to explain what some of my readers may deem an omission. I have said nothing about the choice of type. It is axiomatic that good letter is a prime essential of the good book. There are only two kinds of type, good and bad. Good types, whether based upon classical models or the quasi-original forms of contemporary type-designers, are sufficiently numerous to make a suitable selection, provided the printer knows anything whatever about the subject, quite simple. It should be pointed out, however, that, other things being equal, type cast from matrices struck from hand-cut punches is superior to machine-cut type. This superiority is a matter of real importance, chiefly in printing by means of the hand press. Only in such printing is the difference between the hand-cut and machine-cut letter fully apparent.

No type is good if some of the characters are marked by eccentricity. Unorthodox peculiarities in the forms of certain letters sometimes lend charm to a type-face, but there is a difference between a peculiarity of shape thoughtfully and discreetly arrived at and freakish variations which do not justify themselves and bespeak only a stupid desire for novelty at any cost.

Given the seemly text-page as the prime requisite of the fine book, our next consideration should be what may be called integration of the parts. Here we must again think in terms of architecture, with which art book-design has so much in common. Let the parts of a book be few or many, simple or complex, it is of the first importance that they be, one to the other and each to all, harmoniously correlated.

In the simple undecorated and unillustrated book it is not only desirable that sunken pages, if any (the first pages of chapters or sections, for example), should show an equal sinkage. But all isolated typographic elements, such as half-titles, elements of the title page, copyright notice, dedication, headings of preliminary and supplementary matter, etc., should fall on levels which, though not necessarily identical, bear a mensural, not an arbitrary, relation one to the other and to the structure of the book as a whole. This requires, perhaps, some elucidation. Suppose we give the first pages of our chapters a uniform sinkage. These pages, let us say, establish three levels for us—(1) the chapter heading, (2) chapter title, and (3) the first line of text. If we adopt the same sinkage for Contents, Illustrations, Appendices, and Index, putting the headings of this group on the same level as the chapter headings (LEVEL 1), the first text lines of this group should be on the same level as the chapter titles (LEVEL 2), or on the level of the first text lines of the chapters (LEVEL 3). If, on the other hand, we adopt a different sinkage (smaller) for the second group, we may still relate it mensurally to the first group by placing the first text lines of Group 2 on the same level as the chapter headings of Group 1. Suppose further that we place our half-titles on one of the three or four levels that have been established. We still have to deal with a copyright notice, perhaps a limit notice, a bibliographical note, and a dedication. It is not essential that all of these should fall on the same level, but it is essential that each be related to some one of the established levels. Finally, it is desirable that such major elements of the title page as a subtitle or the author's name should be placed on one of the established levels.

An observance of this principle makes for homogeneity of design. In reading a book so put together we are spared (without knowing that we are spared) the disturbance of our sense of balance which results, almost without our knowing it, when our eyes fall upon a page some part of which is not "tied in" architecturally with the rest of the book. The effect is similar to that of a many-paneled room with an impost cornice at a certain height in all the panels except two or three where it is either higher or lower. We have, in one case, faulty architecture; in the other, faulty book-making. In judging a book or a building, it should be borne in mind that, however charming its parts, it must be regarded as a whole. If our contemplation of it is to be attended with pleasure and comfort, its parts must be so disposed, so correlated, that they will not produce a "jumpy" effect.

It is not contended that every book in which this refinement of perfectly integrated parts has been ignored should be considered a failure because it is less than perfect. If that were true, few books would pass the test. It would indeed be hypercritical to insist that a failure to observe this principle actually spoils an otherwise well-made book. It is desirable, however, that the principle should be observed as far as the material will permit. It must be recognized, also, that sometimes the elements are so diverse—chapter headings or the internal titles of essays, short stories or poems—that a strict adherence to the principle becomes impossible. In such instances, the designer's task is still to strive for order and integration. Perfect order, symmetry, and balance may be unattainable, but this does not justify him in being haphazard. When order is observed we may not be conscious of it; when it is not observed we are aware of its absence. Movement is of the highest importance as a factor of design—such movement, for example, as is imparted to a book by this very diversity of its elements—but good design demands movement that is ordered, not arbitrary. If liberties are taken (and it is desirable, in the interest of vitality and charm, that they should be taken) they must justify themselves aesthetically; they should not only please us in themselves but as evidence of the designer's intelligence, his insight, subtlety, sensitiveness, discrimination, and tact. However diverse the elements or parts of a book may be, however they may, by reason of such diversity, render perfect order and balance impossible, their arrangement should at least possess a rationale.

This need of a fundamental balance has its basis in its pleasure-giving value. I have adverted to the analogy between book-design and architecture, let me point now to an equally pertinent analogy with the structure of poetry. "Verse," says Poe, "originates in the human enjoyment of equality, fitness. To this enjoyment, also, all the moods of verse—rhythm, meter, stanza, rhyme, alliteration, the refrain, and other analogous effects—are to be referred." Specifically, the parts of a book—half-titles, headings, etc., etc.—should be, severally and collectively, related as are such structural elements in verse as recurrent rhythms, rhymes, and refrains.

We must now consider the decorated or illustrated book. In the first place, it should be understood that no form of decoration or illustration is legitimate in the strictly fine book except such as are printed from wood or metal engraved by hand, preferably in relief which comports with type both in physical character and in the means by which the image is imparted to the paper. Process-engravings are disqualified not only because of the preponderant mechanical factor, but because mechanical engraving in relief cannot produce a line of the delicacy and purity obtained with the engraving tool. As a corollary to the principle of integration set forth above let us take first the type of decorated book to which most obviously it applies. A book carrying on various pages head-bands of varying depth and varying tone—deep, shallow, black and heavy, light and delicate—will produce a disturbing effect. Less obvious but hardly less disturbing is a succession of initial letters differing in size, in tone, or in position on the page. The book with initial letters strewn through the text, sometimes several on a single page, is a challenge to the designer. When thus arbitrarily employed it is important, in order that the initials shall not be obtrusive, that they be so selected as to size (in proportion to the page) and so integrated with the book as a whole that their "accidental" character is either disguised or lost and their recurrence actually contributes to the unity of the volume by virtue of their consistent accentual value.

An arbitrary arrangement of tailpieces is likely to produce a "jumpy" effect. Since the spaces (at the ends of chapters or sections) within which tailpieces may be placed differ in area, such decorative elements cannot always fall on the same level. This irregularity can be compensated for in a measure by adjusting the size of the decoration to the area of the space it occupies. By what may seem to be a negation of the law of balance here insisted upon, such a variation is more productive of architectural harmony than tailpieces of uniform size would be if disposed in spaces of varying area.