What´s a Literature Review?

The first signs of graffiti in New York are those with a low level privileged background trying to express race and class boundaries (Gopnik (2011). In Libya, graffiti is used to express freedom Today 's graffiti does not concern politics, religion, personal style or art (Gopnik (2011), etc .... today's manufacturers, paint, spray paint used for graffiti etc.) and artistic self expression , It can include pictures and words that a person may call art, and some may call it a vandalism (Gopnik (2011)).

To conceptualize literature review, it is important to understand the purpose of literature review of the article. Literature review aims to present researchers with an understanding of specific subject areas, fields and fields. This includes important terms, ideas, theories, vocabulary and, of course, pioneering researchers and research in specific fields. Hart (1998) argues that literature review plays a role in finding important variables related to the subject, acquires a comprehensive view of new perspectives, determines the relationship between thinking and practice, Determine the context and streamline the problem. Understand the structure of the theme and relate the idea to theory and application (page 27). Finally it is of course important that a new scholar can identify the lack or lack of this information on a specific field of the literature.

Review articles are displayed in literature review, specifically in the form of systematic review, both of which are in the form of secondary literature. Literature review provides a summary of past publications the authors believe to be the best and most relevant. A systematic review identifies an objective list of criteria and finds all previously published original experimental documents that meet the criteria and they compare the results of those articles