This paper suggests that the effect of the eye on the eyes is different due to the difference in vision when one sees the same thing as being close to the vertical plane of the eye and lying down (horizontally). By minimizing eye fatigue by providing a sense of stability, the efficiency of reading and concentration of the reader can be improved, and the efficiency and concentration of learning can be improved, and the books (documents, etc.) can be supported by hands to minimize unnecessary energy consumption. In order to prevent the bookshelf from falling over by itself, the bookcase presser (pin) is installed in the center of the bottom of the desk to prevent the bookcase from falling over by itself. The elliptic curve was cut to fit the body shape, so that the hardness and discomfort in contact with the chest was reduced, thereby making the physical stability of all users.
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