Category: Software Engineering/Agile Methodology. Review: Software engineering is a critical aspect of modern-day technology development. With the increasing demand for software applications in various industries, it has become essential to adopt efficient and effective methodologies that can help streamline the development process while ensuring quality outcomes. Agile methodology is one such approach that has gained significant traction in recent years due to its ability to adapt quickly to changing requirements and deliver high-quality products within a shorter timeframe. The XP Series, which includes Extreme Programming Explained: Embrace Change, 2nd Edition, Agile Processes in Software Engineering, and Extreme Programming Pocket Guide, provides an excellent overview of the key principles and practices involved in extreme programming (XP). These books offer valuable insights into how to apply XP methodology effectively in software development projects. The authors provide practical examples and case studies that illustrate the benefits of adopting this approach, including improved communication, faster time-to-market, and higher customer satisfaction. The XP Series also includes proceedings from various international conferences on agile processes and extreme programming. These conference papers offer a comprehensive analysis of the latest research and developments in the field. The proceedings provide valuable insights into how organizations can adopt agile methodologies to improve their software development practices, including best practices for project management, team collaboration, and quality assurance. The Agile Processes books cover various aspects of agile methodology, including Scrum, XP, Lean, and Kanban. These books provide a detailed analysis of each approach and offer practical guidance on how to implement them effectively in software development projects. The authors also discuss the benefits and drawbacks of each approach, helping organizations make informed decisions about which methodology to adopt based on their specific needs and requirements. The Extreme Programming Refactored book challenges some of the fundamental principles of XP methodology by arguing that refactoring is not always necessary or beneficial in software development projects. The author provides a compelling case for why organizations should focus more on delivering working software quickly rather than constantly refactoring code. This book offers valuable insights into how to balance the need for quality with the need for speed and efficiency in software development projects. In conclusion, the XP Series and Agile Processes books provide an excellent resource for software engineers and project managers looking to adopt agile methodologies in their software development practices. These books offer practical guidance on how to apply these approaches effectively while ensuring quality outcomes within a shorter timeframe. The proceedings from various international conferences provide valuable insights into the latest research and developments in the field, helping organizations stay up-to-date with the latest trends and best practices.