Systematic reviews are essential in evidence-based practice, offering a methodical and transparent framework for the collection, evaluation, and synthesis of existing literature. This chapter begins by identifying the fundamental elements of systematic reviews, which include the formulation of clear research questions and the establishment of specific inclusion and exclusion criteria. The discussion progresses to the systematic search process, outlining effective strategies for locating pertinent studies across various databases and managing references efficiently. The significance of thorough study selection and quality assessment is underscored, employing recognized tools such as the Cochrane Risk of Bias Tool and the Newcastle-Ottawa Scale to assess the methodological quality of the studies included. In-depth attention is given to data extraction techniques, emphasizing the systematic collection of relevant information to support the detailed analysis. The chapter also investigates statistical methods for meta-analysis, including both fixed-effect and random-effects models while addressing the importance of evaluating heterogeneity and performing sensitivity analyses. Potential challenges and biases inherent in systematic reviews, such as publication bias and selective reporting, are critically analyzed, along with strategies to mitigate these concerns. The chapter concludes with suggestions for enhancing transparency and rigor, promoting adherence to established guidelines such as PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses). By offering a structured approach to conducting systematic reviews, this chapter provides researchers, practitioners, and policymakers with essential tools to navigate the complexities of evidence synthesis. Ultimately, it seeks to improve the quality of research and support informed decision-making across various fields.