Summary
Highlights
A literature review demonstrates understanding of existing research, identifies gaps in current knowledge for your research to fill, and helps build a methodological foundation for your study. It shows expertise in your field, highlights the novelty of your research, and provides ideas and tools for your methodology.
The first step involves finding reliable sources. Google Scholar is a powerful and trusted search engine for academic papers. Use relevant keywords, quickly review titles and abstracts, and download full papers if available. For unavailable papers, list their details. University libraries are another valuable resource for licensed academic content, often providing access to papers not freely available on Google Scholar. The 'Snowballing' method involves checking the reference lists of highly relevant papers to find additional sources. Finally, explore master's and doctoral theses from universities and specialized databases (like ProQuest and OpenDissertations) as they provide examples and related research, but exercise caution as these are student works.
After gathering all relevant literature, organize it using reference management software (e.g., EndNote, Mendeley, Zotero) or even Excel. Summarize the key points of each paper in one or two sentences, noting its relevance to your research question. Categorize papers by potential sections or topics within your review (e.g., economic impact, human health impact), which will streamline the writing process. This detailed organization helps in quickly locating information and understanding how different studies connect.
Begin by structuring your review with a clear outline based on how the gathered information fits together. This can be chronological or thematic. The most crucial part of this step is creating a first draft without aiming for perfection. Focus on getting all your ideas and content down on paper. After completing the first draft, take a short break (a day or two) before reviewing it for clarity, flow, and additional details. Seek feedback from friends, family, and lab colleagues to identify areas for improvement before sending it to your supervisor. Be open to feedback and revisions from your supervisor, as this iterative process ensures a well-structured and comprehensive literature review.