VIP Chinese Science and Technology Periodicals Full-Text Database is the largest comprehensive literature database in China, contains more than 6.2 millions articles from above 8000 titles of academic periodicals from 1989 to present in natural science, engineering technology, agriculture, medicine and hygiene, economy, education and library & information science. The collection is increasing at the rate of about one millions articles per year. It is divided into 7 essential categories according to the Chinese Library Classification: natural science, engineering technology, agricultural science, medicine & hygiene, economic management, education science and library & information. The essential categories are further divided into 27 topics. Proper classification makes the database more accessible.