A good literature review should have the following characteristics:

• The problems and controversial issues related to the topic should be discussed.
• The potential content that have not been
  covered in the literature review should be
  explained with its reasons clearly.
• The literature review should concentrate on latest documents since they are likely the
  most pertinent.
• The literature review should be long enough
  to persuade the reader that the literature
  was read extensively.
• The gaps in the current literature should be
  revealed in the literature review.
• The literature review should be more than a list of past studies. Rather, it should give the reader a sense of what has been more significant and less significant. In other words, the works cited in the literature
  review should be critically evaluated.
• Overall, the literature review should be
  presented chronologically.
• The literature review can ignore the studies
  from different disciplines than your immediate discipline.
• The literature review should explain the readers how your work might contribute to the existing scholarly literature and future research.