In this course, you will study "Pattern Language," a medium designed to support people's creativity and practice. Pattern language encapsulates the essence (the knack) of creation and practice into small units termed "patterns," which are adequately abstracted, systematized, and verbalized. You will learn about what pattern language is by exploring various pattern languages and experiencing their practical application. The course covers a wide range of topics including learning, dialogue, omotenashi (hospitality), presentation, teamwork, creative project, innovation in welfare, the care practice and realizing good places, support in organizations and education, inquiry, reading, realizing a better digital society, and life design. Each of these topics is not only extensive but also practical, relevant to your daily life and personal growth. In this sense, this class offers a unique opportunity to learn about the new medium of pattern language and its methods, as well as to gain insights that can enhance your everyday life and future. I hope you will seize this chance to experience and appreciate the fascinating world of pattern language and apply it in your life going forward.