Code reviewing is a critical practice in the software development life cycle, often misunderstood and neglected in favor of testing, yet it plays a vital role in ensuring code quality and adherence to standards. This process involves breaking down the source code into smaller sections for inspection by team members, including developers, QAs, and product managers, with the main goal of detecting early bugs and ensuring compliance with coding standards. While testing focuses on verifying that the application functions correctly, code reviewing emphasizes code readability, simplicity, and compliance with best practices. In Agile environments, code reviews are crucial for early bug detection, mentoring junior developers, fostering team cohesion, and maintaining compliance with industry standards. Despite some misconceptions, code reviewing and testing complement each other and cannot replace one another, with code reviews providing insights and improvements that testing alone might not reveal. Effective code reviewing involves setting clear goals, building and testing code prior to reviews, and fostering a positive, collaborative environment while leveraging tools for efficiency.