How to write a literature review - my simple 5 step process!

A literature review becomes manageable when it’s built around a clear “why” and a deliberate structure that’s refined after reading widely enough to spot patterns. The process starts by locking down the research question with supervisors, because that clarity determines what belongs in the review and what doesn’t. Without that alignment, literature searches turn into a sprawling collection of papers rather than a targeted argument about the gap, context, and motivation for the research.

Step one is to work out the research question and the purpose behind it—often in close conversation with an academic supervisor who may have originated the project direction. The key is to understand what the supervisor is aiming for so the literature search can be guided by relevance. The transcript gives a concrete example from physical chemistry and surface science: the goal was to determine whether a solar cell could be made using an aqueous dispersion of nanoparticles—essentially creating a “solar ink” or “solar paint” that could generate electricity as the active layer. Getting multiple supervisors aligned on the direction helped ensure the literature review would support the same end goal.

Step two shifts from purpose to architecture. It’s about deciding which major topics must be brought together to answer the research question, using broad headers rather than fine-grained subheadings at first. The transcript recommends mapping overlapping subject areas like a Venn diagram—especially because cutting-edge work often sits at the boundaries between fields. Another organizing lens is “schools of thought,” where different researchers emphasize different interpretations or methods. Chronology can also work: tracing how a technology evolved (for example, the history of solar cells and efficiency improvements) to justify what comes next.

Step three turns the structure into a search strategy. With the major themes defined, the next move is to search systematically—Google Scholar is singled out as the starting point—and to group papers under the headings chosen in step two. Since this quickly produces a large pile of sources, organization becomes essential. The transcript describes a practical two-pronged method: print papers for reading away from a computer, then capture each paper’s main finding, authorship, challenges, and novelty in brief bullet notes on the first page. Those notes are then transferred into an Excel sheet with searchable fields (including topic area and unique details like different surfactants used to create nanoparticles). Tools like Mendeley are mentioned for reference management, but the Excel “cheat sheet” is positioned as the key to staying relaxed during later writing.

Step four is a digestion phase. After enough reading, the brain naturally starts connecting ideas and identifying overlaps, disagreements, and patterns. At that point, the earlier structure is revisited and adjusted, and subheadings are added under each major topic. The warning is to avoid trying to write polished prose before the outline is stable; otherwise, structure and wording get tangled.

Step five is writing the words in chunks. The transcript emphasizes daily writing sessions (for example, several hours split into blocks), using the notes and literature summaries as a guide. Each paragraph should connect back to the “why,” whether by summarizing findings, explaining how they relate to the research goal, or highlighting gaps the project aims to fill. Feedback from supervisors, plus optional editing for grammar and typos, rounds out the workflow. The overall message: structure first, read to synthesize, then write steadily—aiming for progress over perfection.