Literature is a combination of knowledge and information recorded in the form of words, symbols, images and audio on a certain material carrier. From this definition, we can see that literature has three basic attributes, namely, knowledge, record and materiality of literature. It has the functions of preserving knowledge, transmitting and exchanging information.
On the basis of extensive reading, the author comprehensively introduces and comments on the research achievements and development trends at home and abroad in a certain subject field, shows his own views, predicts the future development, and puts forward pertinent opinions or suggestions on related issues.
The so-called literature review is the abbreviation of comprehensive literature review, that is, on the basis of comprehensively collecting and reading a large number of research documents related to your research topic, after induction, analysis and identification, systematically and comprehensively describe and comment on the research achievements, existing problems and new development trends of your research topic (such as discipline or topic) in a certain period of time.
It is an academic paper and a scientific document. Literature review reflects the latest progress, academic viewpoints and suggestions of an important subject in a branch or field. It can often reflect new trends, new trends, new levels, new principles, new technologies and so on.
In a word, literature review is a synthesis and summary of literature, and it is a scientific paper that the author comments on the historical background, previous work, debate focus, research status and development prospect of a certain issue.