Osamu Sugiyama (also known as Staris) is a Japanese musician and YouTuber. Alongside his work in electronic music, he has developed and shared a distinctive approach to journaling based on his own creative process, attracting a wide online audience. Guided by the belief that creativity is a skill that can be cultivated rather than a matter of chance, Sugiyama advocates journaling as a practical method for self-reflection, organizing thoughts, and generating ideas. In his book Creative Journaling, he introduces an original system that combines writing with diagrams and charts, offering readers an accessible framework for developing creativity through everyday practice.
