Muscular Sonography for pain physician, published by the Korean Society of Pain Functional Analysis, is a book on ultrasound for healthcare workers who need knowledge about pain treatment. It is organized into sections for each muscle group and explains in detail the principles of pain generation and treatment. It also includes QR codes to link to videos of injections and scans to help you not only understand the theory, but also apply it to your practice immediately. The illustrations on the cover are inspired by ancient arabesques and represent equipment used to treat pain. Inside, we tried to maintain consistency by applying expressive elements to the titles, subtitles, figures, and footnotes that tie in with the overall theme.