Cloud Computing Technologies is a well-structured and authoritative guide that unravels the dynamic world of cloud-based solutions and the technological advancements driving digital transformation. Designed to serve as a valuable resource for students, educators, IT professionals, and researchers, this book delves into the core concepts and practical implementations of cloud computing. It begins by laying a strong foundation in the principles of parallel and distributed systems, virtualization, and the evolution of cloud architectures. Readers are introduced to key topics such as service models (IaaS, PaaS, SaaS), deployment models (public, private, hybrid, community), cloud storage, elastic resource management, and cloud-enabling technologies like virtualization, SOA, and publish-subscribe systems. The book explores modern cloud architecture, layered design, and NIST standards while highlighting the importance of security, data privacy, and risk management in cloud environments. Detailed coverage of multitenancy, scalability, on-demand provisioning, and disaster recovery provides insights into real-world applications and operational strategies. With a blend of theoretical knowledge and hands-on context, the book incorporates lab-ready content, implementation mechanisms, and deployment practices. Advanced topics such as IoT integration, high-throughput computing, server virtualization, and parallel computing models offer a comprehensive understanding of cloud’s impact across domains. Cloud Computing Technologies also addresses contemporary challenges such as vendor lock-in, interoperability, and security threats, equipping readers with critical thinking and decision-making skills required in modern IT ecosystems. With contributions from experienced academic professionals and supported by current research, this publication stands as a vital reference for those preparing for certifications, academic instruction, or careers in cloud-based IT services and development.