Chasing the trends of the digital age, new technologies transform the library building into the intellect architecture. The modern library have to respond to different conditions, such as demand for library services, respecting the characteristics in different communities, the use of digital technology, diversification of services, thereby increasing the readers to have a new library experience, thus the existence value of library services could be demonstrated. The library building could be a new positioning for services. While books, people, and building were three perspectives discussed in this paper, the topics as books arrangement and way-finding, distance-collection and metadata, subject classification and social tagging, multiple-disciplined readers and human-computer interface, identification with flexible services, intelligent building and management, were explored for understanding of shifting directions of the ongoing library building.