This is an introductory book to Motobu-ryu Udundi, a martial art passed down through the Ryukyu royal family. It systematically explains traditional techniques and philosophy, making it suitable for a wide range of learners, from beginners to advanced practitioners. - Title: Introduction to Motobu-ryu Udundi - Author: Moritoshi Ikeda - Price: 3960 yen I read it once after purchasing and then stored it. There are no markings or highlights.