This may fairly be claimed as a popular subject. It is one in which nearly everybody--perhaps everybody--is interested. There can surely be few, if any, who do not care about the outside of a book. Even if a man never opens a volume, he likes its exterior to be pleasing. Nay, there are books which may be said to be produced and utilized only for their outward garb. How often does one find a volume described as a charming one 'for the table'! It is for the table that certain publications are destined. Enter a drawing-room, and you will find a few books scattered here and there 'with artful care.' I do not say they are intended never to be opened, but their primary function is to look nice--to 'set off' the table-cloth, and, generally, to give a bright appearance to the room. And their adaptability for this purpose is so widely recognised that you can scarcely go anywhere without coming across books of this complexion. You find them exposed to view in your doctor's or your dentist's ante-chamber; you find them placed before you, usually very much the worse for wear, in hotel waiting-rooms. And the instinct which prompts all this display is genuine enough. It is perfectly true--there is no furniture so agreeable to the eye as books. Nothing makes a room look at once so picturesque and home-like, if the volumes be but sufficiently varied in size and hue. And that brings us in presence of a point of controversy. Ought there to be so much variety in the exteriors of books? Ought they to be 'got up' in so many different styles? Some people would answer these questions with a decided negative. These are the persons who like uniformity in their libraries, who would have one shelf look for all the world like the facsimile of the other. These are the persons who, almost as soon as they buy a book, are desirous to have it rebound after some fantastic notion of their own. There is a class of purchaser which revels in long lines of volumes in 'full calf gilt.' You see that sort of thing in most old-fashioned collections. And the effect is not bad in some respects. The rows look handsome enough. They have solidity and richness. Nor do I say that for a certain species of publication 'full calf gilt' is not a very judicious form of binding. One likes to see the quarterlies and higher-class monthlies done up in that style. It befits the seriousness of their contents. But do not let everything be put into 'full calf gilt,' solid and rich though it appears. Let us give full play to the element of variety. Let every book have an individuality, a character, of its own. Let us be able to identify it easily. Let it retain its original garb, so that we may always be able to distinguish it. Surely it is one of the greatest charms of a row of volumes that each has its special features, and can readily be found when wanted.