According to the different publishing forms, it can be divided into books, serial publications and special literature.
(1) Books: Any document that is longer than 48 pages and constitutes a bibliographic unit is called a book.
(2) Continuous publications: including periodicals (including core periodicals), newspapers and annual publications.
(3) Special documents: patent documents, standard documents, dissertations, scientific reports, conference documents, government publications, archives and product materials.
The function of literature
1, literature is the final expression of scientific research and technological research achievements;
2. Literature is the best means to spread space-time information;
3. Literature is the basic means to confirm the priority of researchers to a discovery or invention;
4. Literature is an important index to measure the creative labor efficiency of researchers;
5. Literature is a means for researchers to express themselves and confirm their position in science, so it is an important incentive for researchers to carry out research activities;
6. Literature is an integral part of the treasure house of human knowledge and the common wealth of mankind.
Definition of literature: knowledge with historical value and research value recorded on a certain carrier by certain methods and means and using certain meaning expression and recording system.
source
"The Analects of Confucius Eight Shu": "I can speak of Xia Li, and I can't argue; I can say Li Yin, but I can't sign Song Li. Insufficient literature. "
Erya Shi Yan: "Dedication is sacred."
Where is Zhu? Note: "Wen, Jing also; Xian, xian also, "
Ma Song Duanlin's "Literature General Examination": "Those who can decide the gains and losses of allusions in one word and prove the right and wrong of history, take them and record them, which is called sacrifice."
Song? Lu you? The poem "Xie Xujun Hou meets Wang Xiang Wine" says: "Clothes wear the south, and literature always stays."
Yuan? Yang Weizhen? The poem "Send a Monk to Japan" says: "If you want to travel to oriental literature, go to middle school."
Qing? Yuan Xiangyi's Preface to the Genealogy of Yuan Family (Yuan Keli) in Suiyang: "Although there are no elders left behind and no documents to test, what you hear and see is beyond description. My loyal and virtuous children are better than before, thinking of Gray's poems. "
Qing? Wang Shizhen? "Notes on Xiangzu" Volume 9: "The ancestor of Yu Yi, who had no literature, thought he was tired of it, so he recorded anecdotes about foreigners in the book."
Lu Xun? Letter to White Grass: "But this is a little literature, not an introduction."
Xu Chi? Goldbach guessed: "Because of the persistence of these researchers, the Institute of Mathematics continues to order documents from all over the world."