《北史·列传·卷七十》
过了一个多月，周文帝又征召他，就进了关中。周文帝就令季明在东阁订正确定古今的文字。西魏文帝大统末年，授著作郎之职。
俊以书字所兴，起自苍颉，若同常俗，未为合礼，遂启周文，释奠苍颉及先圣、先师。
More than a month later, Emperor Wen of the Western Zhou summoned him again, so he entered Guanzhong. Emperor Wen of the Western Zhou ordered Jiming to revise and correct the ancient and modern texts in the East Pavilion. At the end of the Datong era of Emperor Wen of the Western Wei Dynasty, he was granted the post of Zuozuo Lang.