In mid-and-late Tang dynasty,following the radical changes in politics,the organizing structures,functions and activities of Institute for the Glorification of Literature also changed a lot,which had an impact over the development of literature.

Development program of library collection is the guide of library collection construction.

“To get rid of the stale”and“take in the fresh”of documents have a com- mon task to undertake,that is,constructing,organizing,developing the system of the library collections,and regulating,controlling,reforming,perfecting the structure of the library col- lections,and making it more rational.

This paper analyzes the evaluation necessity of Vocational college Library collections through anal-yzing the two major outstanding features of Vocational college Library collections.

The Development and Exploration of China's Planetarium

Based on the review of Beijing planetarium,this paper reviews the development of planetariums of China.

The article brings forward the question about paying attention to teac hing benefit of high-class equipment,and analyses and researches the concrete ex ample of building planetarium at a middle school.

This paper introduces the characteristics of library s literature demand structure, analyzes on the practical significance of researching on the literature demand structure, and probes into the methods and measures for the adjustment of the collected literature structure.

This paper probes into the targets of the digitalization of collected literature,the copyright protection and the methods for the copyright protection in university library,and puts forward several suggestions on the construction of the library law.