Write a short note on Literature Review.

A literature review is a critical and systematic examination of existing scholarly literature on a particular topic or research question. It involves identifying, analyzing, and synthesizing relevant academic sources such as books, journal articles, and research reports to gain a comprehensive understanding of the current state of knowledge in the field.

The purpose of a literature review is to:

1. Provide context: By reviewing existing literature, researchers can situate their own study within the broader scholarly conversation and identify gaps or areas for further investigation.
2. Identify key concepts and theories: Literature reviews help researchers identify and evaluate the key concepts, theories, and methodologies that have been used to study their topic.
3. Evaluate evidence: Researchers assess the quality and credibility of existing research findings, identifying strengths, weaknesses, and areas of consensus or controversy.
4. Inform research design: Literature reviews inform the development of research questions, hypotheses, and methodologies by providing insights into previous studies' approaches and findings.
5. Support argumentation: A well-conducted literature review strengthens the rationale and argumentation of research studies by demonstrating the significance and relevance of the research topic within the existing body of literature.