This book serves as an invaluable resource for physicians utilizing ultrasound in their practice, emphasizing its crucial role in imaging and guidance for pain interventions. It introduces and explores the concept of "sonoanatomy," offering a practical and concise guide for pain and musculoskeletal specialists. The application of ultrasound has grown significantly across various clinical disciplines in recent years. In pain management, it has become a practical and widely adopted tool. By using ultrasound, clinicians can improve the success rates of pain interventions while reducing the risk of complications. Compared to fluoroscopy and CT, ultrasound is more convenient; however, it requires a solid understanding of clinical anatomy and hands-on experience for effective and safe application. "Sonoanatomy" refers to the integration of detailed anatomical knowledge with ultrasound imaging. Mastery of sonoanatomy is essential for accurately targeting structures during pain interventions. This synthesis of anatomy and practical ultrasound techniques is the cornerstone of successful procedures. The book prioritizes sonoanatomy while detailing relevant techniques. Designed as a concise guide, it is tailored for physicians across specialties, including residents and specialists in physical medicine and rehabilitation, anesthesiology, pain medicine, and anatomy. It also serves as a valuable reference for all clinicians involved in ultrasound-guided procedures.