In the 70s, Shizuto Masunaga Sensei, a great master and the creator of Keiraku shiatsu (meridian shiatsu) conducted four-month correspondence courses. He sent his students the four manuals he had written to purpose. Given their valuable content, we decided to translate them from Japanese, believing them to be of great help to students, practitioners, and teachers of shiatsu alike. This fourth and last volume illustrates clinical shiatsu, examining a series of common “ailments” and recommending the most appropriate meridian treatment, from the illustration of the symptoms to “how to assess” and “how to cure”. Each section is supported by figures giving the meridian pathways. The final week also considers shiatsu for children and beauty. The concepts are accessible to everyone and are useful for we as practitioners and for the recipients we practice on. Shizuto Masunaga was truly a master, and his words always have something to teach us.