This article collects all Yan’s seals gleaned from the warring states period and gathers everyone’s point of view.Based on this,we sort and do research for every seal of Yan.This article is mainly divided into four chapters:the first chapter is the overview of the research of Yan’s seals. This chapter mainly introduces the status, significance and methods of research for Yan’s seals in brief;The second chapter is to gather the views of researchers on Yan’s seals and based on this I make my own judgment.The third chapter is about official seals which are controversial on nationality.This chapter mainly introduces some controversial seals.The fourth chapter is epilogue. This chapter is mainly to classify the seals of Yan, and puts forward problems and suggestions in this study. |