The Library Bureau catalog itself is one of the best library aids ever published. These catalogs have always been sent free to library workers. Libraries grew in numbers and size largely because of the enthusiasm of earnest workers, but very frequently with hardly enough financial assistance to warrant more than the purchase of a few books, and frequently with limited knowledge of how to make the small store of use to the waiting public. The management of the Library Bureau at this time was certainly doing a missionary work; but its chief problem was the financial one, or how to make both ends meet, and it was not until library methods were introduced into business houses that this question was solved. The constant and untiring efforts of the management of the Library Bureau toward the assistance and upbuilding of the smaller and younger libraries have had much to do with the growth of library sentiment, which is now so apparent on every hand, and indirectly this knowledge of library work and library methods has done much to enlarge the facilities of the Library Bureau. From a very unpretentious concern, publishing a few library aids, manufacturing such library devices as could not be obtained elsewhere, and keeping for sale a few articles of library furnishing, the Library Bureau has grown to be a corporation of no small proportions, having numerous branches both in this country and Europe, maintaining a card factory, cabinet works in Boston and Chicago, and facilities for the manufacture of steel stacks unexcelled in this country. The Library Bureau, however, has never forgotten the cause of its birth or the teachings of its youth, as is clearly evidenced from year to year by the various undertakings and publications which a careful observer can clearly see are not put forward with any presage of success when viewed entirely from a business standpoint. This lesson is constantly taught to the employes of the Library Bureau, and they are positively instructed that, regardless of the promise of success in other directions, the attention to library requirements is the first demand. The Library Bureau maintains at its various offices persons thoroughly versed in library economy, for the express purpose of furnishing detailed information and aid to those younger members of the profession whom they have the pleasure and opportunity of assisting over the stumbling-blocks in their daily work. With this same idea in view it publishes from the Chicago office a monthly magazine called PUBLIC LIBRARIES, of an elementary character, which is entertaining, instructive, and inspiring, and helps to encourage a sentiment favorable to public libraries and to make librarianship a profession of high standing. CHAPTER XI Selecting books--Fitting the library to its owners The selection of books should be left to the librarian, under the general direction of trustees or book committee.