《雪庵字要》(以下简称《字要》)又名《雪庵大字书法》,是迄今所见第一部专论楷书大字书写技法和鉴赏标准的理论著作,为元初“善真行草书,尤工大字,与赵孟頫名声相埒一时”[1]的昭文馆大学士李溥光晚年(1308)所作。全文由二十二条内容组成,不到两千字,却言简意深,颇益后学。其中关于楷书大字笔 “Snow Temple word” (hereinafter referred to as “word to”), also known as “Snow Um large calligraphy” is by far the first monograph written in Chinese characters writing techniques and appreciation of the standard works of theory for the beginning of the Yuan Dynasty Cursive, especially the characters, and Zhao Mengdu fame and foul "[1] Zhaowen Pavilion bachelor Li Pu light in his later years (1308) made. The full text consists of twenty-two elements, less than two thousand words, but concise and deep, quite after learning. One of the regular script on the big pen