The present invention incorporates a fragrance container containing rose fragrance (rosemary, basil, peppermint, etc.) to help improve memory and concentration in books or textbooks. Each time you turn the bookshelf, you smell the fragrance that comes from the book, which activates their brains and activates their mental functions so that they can stabilize their memory, concentration, and mind and body. In the book, the cover of the book formed so that the fragrance container can be inserted after attaching the fragrance container detachable part which can detach the fragrance container containing the fragrance in the form of gel in the center of the inside of the book cover. Binding with;The fragrance container in which the fragrance is contained in a gel form in the inside of the book formed as described above, that is, the fragrance container detachable portion attached to the center of the book cover, can be detached through the fragrance container insert formed in the inlay of the book. Thus, when the general public, students or examinees read or study, the fragrance of the book can give them the same effect as a kind of fragrance therapy in unconsciousness, which stabilizes their mind and body, and also improves their memory and concentration. It brings the effect of improving.;Books, book covers, air fresheners, air freshener containers, air freshener containers,
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