Introduction of Trapezoidal Lattice Learning Method

Zhao Rufei, founder of Trapezoidal Typesetting, is a member of Bingtuan Calligraphers Association and a retired teacher of Bingtuan. "Trapezoidal typesetting" was developed by him after more than 30 years of exploration, practice and research, and obtained a national patent. The publication of Trapezoidal Printing edited by him is an important research achievement in the field of calligraphy education in China.