On Information Grammar, Semantics, Pragmatics, and Perfect Information——Some Comments on Principles of Information Science (Third Edition);

On the Worldview of Information Science;

Rethinking of the Definition and Domain of the Subject of Geographic Information Science;

Informatics Technique with Fresh setup of World Economy;

Based on the analysis of the subjects such as market economy, knowledge intensive economy and informatics, this paper deals with the classification method of the literatures related to the hot subjects according to the Chinese library classification.

It is possible to classify numerous disciplines in the modern information science group into six basic levels: information philosophy,general information theory,field information,category informatics,branch informatics,and engineering informatics.

The rapid development of network medium has broken the balance of the old scientific information media structure, so it is necessary to integrate the rising with the traditional paper medium and to locate all the media respectively.