Meet the author and the designer

The Diff books are the result of our long friendship and mixing of cultures and unique talents.

I’m writing because I just cannot keep the words inside my heart. Too emotional! I love Diff. He is not perfect but follows his heart. I hope you will have a chance to meet him.
Echo Yao

I’m working usually on business simulation and tools for teamwork. I hope my experience can bring you really unique development tool. I hope Diff will surprise you.
Ze Nawara