Literature Review
A critical synthesis of existing scholarly research on a specific topic, designed to map current knowledge and identify gaps.
What is Literature Review?
A literature review is not merely a summary of individual papers. It is an analytical essay that organizes existing literature thematically or methodologically, evaluates the strengths and weaknesses of prior studies, establishes the current state of consensus or debate, and positions the researcher's new study within that historical context.
Why Literature Review Matters
It demonstrates the researcher's mastery of the field, prevents the duplication of existing work, provides theoretical context, and explicitly justifies the need for the new research question.
Example
A chapter in a dissertation that categorizes previous studies on remote work into three generations, critiques the heavy reliance on self-reported data in the second generation, and argues for a new objective measurement approach.
Common Mistakes
- Writing an annotated bibliography (listing summary after summary) rather than synthesizing the literature into thematic arguments.
- Ignoring studies that contradict the researcher's own hypotheses or assumptions.