In the digital era, the physical act of writing is diminishing. Yang Jun went back and asked himself – why do we need notebooks? What role do notebooks play in our life? How do we use them? He went back and discovered a broad approach. He thus creates amazing notebooks. Till today, Yang Jun’s notebook brand Jiu Kou Shan has attracted many loyal fans due to its unique design, material, and binding.

Yang Jun is an unreasonable man.

Watch our interview with him.