圖書館是一個提供知識、交流知識的重要場所，長久以來，圖書館經營者都試圖將圖書館中的讀者求知、館員服務與藏書傳布三種活動，作最適當的配置，標示系統有助於讀者不致於迷失在「圖書館的空間」中，但什麼才是使讀者不會迷失在「書海」中，是圖書資訊學界下一步值得探討的重要課題。

The library is an important location of providing knowledge. Managers of libraries always try to distribute appropriately among readers' needs, library services, and collection dissemination. Sign system plays an important role to help readers not get lost in library building; however, how readers will not get lost in library collection would be the next important issue to be investigated.