Textbook in PDF format Hybrid AC/DC Microgrids: Optimization, Energy Management, and Protection is a practical and holistic guide to the opportunities and challenges of this essential energy system technology. The book builds from fundamental concepts of design and operation management to recent advances and specific, practical scenarios. Combining both power management and quality control with real-world risk assessments, the book's chapters cover power generation options, including wind, solar, and hydrogen. Modeling techniques, fault detection, and protection via both physical and AI methods are included and demonstrated, along with clearly formatted case studies, objectives, and worked problems to support reader understanding. Including guidance for protection and resilience in both normal and abnormal conditions, this book prepares students, researchers, and industry engineers to design and maintain energy grids that will weather climate change and support a clean energy future