Dashu changyu 大書長語

Dashu changyu 大書長語 is a book on the calligraphy of large characters written during the late Ming period 明 (1368-1644) by Fei Ying 費瀛, courtesy name Rudeng 汝登, style Yilin Yufu 藝林譽夫, from Cixi 慈溪, Zhejiang. Of his life, nothing is known apart from that he was an expert in calligraphy.

This book, spanning 2 juan in length, is a comprehensive work on large-character calligraphy. While ancient scholars wrote extensively on calligraphy, few works specifically focused on the methods of large-character writing. This book fills that gap in the field of calligraphy studies. It expounds on the correction of the mind, familiarity with characters, learning from a teacher, insightful understanding, adaptability, structure, true form, spirit and energy (shen qi 神氣), inspired execution, the value of proficiency, inscribed calligraphy for the boards of institutions (shu shu 署書), hall plaques (tangbian 堂扁), bold strokes, authentication, engraving and lacquering, ancient origins, "guest inquiries" (kewen客問), paper, brushes, ink, and inkstones.

The text is found in the rare series Gaochang biji jiaji 高昌秘笈甲集 by Sun Jian 孫鑒 from 1927.