When you are asked to write a literature review, you should always bear in mind that this is a very serious task.
 
In your literature review you should describe almost all the sources used in your academic writing, but in a brief form. This means that you should know all the peculiarities of this or that bibliography reference of your literature reviews to discuss its main subjects. In this connection, the purposes of a literature review will be discussed in this article.

• Literature review is used during the dissertation defense. You should prove the relevance of your research, providing different works on your topic, but underlining that thorough research has not been made in your sphere yet, what explains the relevance of your research.

• Literature review is used in proposals of various kinds. This means that you may be asked to write literature reviews when applying for some university to make a dissertation, research, etc. there. There can be no doubts that in this case the use of your literature review is of paramount importance, since the committee will definitely consider the amount of sources, which you have used for your research. This may influence your admission.
• Literature review is used in different scientific conferences. This means that if you want to take part in some scientific conference, you should make a good literature review and present it to the committee, so that they would be able to see that all the information included in your research was not spun out of thin air.

As far as you can see, you should not neglect literature reviews writing, since it has a great value for you. Whether you succeed in some kind of academic writing or not may depend on your literature review.