Abstract
In recent years, according to change of a new construction system or a space concept, beautiful attractive space is increasing number of many libraries. On the other hand, the book drop has not changed a design from the past, and it looks bad. So it makes the gap with library space. In addition, a simple structure of the rectangular is a cause of the damage of the return thing. Taking advantage of the design proposal of the book drop installed in the Shibaura Institute of Technology library, this research is what searched for a new structure and design, and aims prospective at commercial production.
