Yitizi Zidian (异体字字典, Variants of Chinese Characters Dictionary), an introduction: Chinese characters have a long and profound history. Beyond the internal evolution of their structures, the processes of copying, woodblock engraving, printing, and interpretive adaptation throughout history have inevitably led to complex and diverse textual variations. To facilitate the teaching of Chinese characters, written communication, and information development, the Chinese Ministry of Education has consolidated these complexities by establishing "standard characters" to set a unified benchmark for usage. Following this, and in order to preserve textual history, the Ministry undertook the task of organizing character forms from historical dictionaries and literature dating from ancient times to the present. By linking other variant forms that share the same pronunciation and meaning to their respective standard characters, they compiled a comprehensive compendium of Chinese glyphs: the Variants of Chinese Characters Dictionary.