(1) _Purchase of Books._ The simplest method for finding books is far from being the best method. It is to have a quantity of books--a hundred or more at one time--sent by booksellers on approval. This method involves hasty examination, and generally results in obtaining many useless, worthless books intermixed with a few good ones. The better plan is for the committee, first of all, to be supplied with catalogues from reputable publishers of books for children and young people, and also books on religious and biblical education; next to read carefully the reviews of books in these departments as given in the best literary and religious periodicals; then, to send only for such books as they judge will be desirable, receiving them on approval. Every book should not only be looked at, but read; and if at all doubtful read by more than one member of the committee. In some Sunday schools there is placed at the door a library box, in which may be deposited the names of books desired by members of the school. Lists of approved books are published by various houses and societies; and the catalogues of a few good Sunday-school libraries will aid committees. The library committee must scrutinize closely all donations of books offered to the library, and resolutely decline every book that is unsuitable, even at the risk of offending the donor. The Sunday-school library room must not be turned into a mausoleum for dead volumes. The committee must also beware of bargains offered by some booksellers who would unload upon Sunday schools their left-over and unsalable stock. That which costs little is generally worth less. The Sunday school must obtain only books that will be read and are worth reading. (2) _Frequent Additions._ The usual method is to use the old library until its best books are either worn out or lost, and then to make a strenuous effort at raising money for the purchase of an entirely new collection. But the better plan is to add a few carefully selected books each month to the library. To examine at one time two hundred volumes is an impossibility, and in so large a purchase many undesirable books are sure to be included. It is not difficult to select after careful examination ten books each month, and thereby keep the library always at a high grade of excellence. With each purchase a slip describing the new books might be printed, and distributed to the school, thus keeping the library constantly before its patrons.