Yang Xi
Although no autograph copies of Yang Xi's famous calligraphy have survived, one well-documented stone rubbing version of the revealed "Huangting jing" (黃庭經, Yellow Court Scripture) has been given special attention. The Song dynasty connoisseur and critic Mi Fu (1051-1107) analyzed four manuscripts of the "Huangting jing", and said the best one was written on a silk scroll with a provenance that he traced back to the early 8th century. Mi disagreed with a former owner Tao Gu (陶穀, 903-970) who said that Wang Xizhi wrote the manuscript, and concluded it was a superb example of calligraphy from the Six Dynasties period. The Ming dynasty calligrapher and painter Dong Qichang (1555-1636) was so impressed by the Mi Fu manuscript that he made a copy, recommend it as the best model for studying "kaishu" script, and included it as the first example in his classic "Xihong tang fatie" (戲鴻堂法帖, Calligraphy Compendium of the Hall of the Playful Goose). Dong's colophon attributed the calligraphy to Yang Xi himself and described it as "the traces of a holy immortal" (Ledderose 1984: 262-263, who calls Dong's attribution to Yang "extremely optimistic").
Calligraphy
He has been credited for reviving the art of modern penmanship and lettering single-handedly through his books and teachings – his handbook on the subject, "Writing & Illuminating, & Lettering" (1906) was particularly influential on a generation of British typographers and calligraphers, including Graily Hewitt, Stanley Morison, Eric Gill, Alfred Fairbank and Anna Simons. Johnston also devised the simply crafted round calligraphic handwriting style, written with a broad pen, known today as the "Foundational hand". Johnston initially taught his students an uncial hand using a flat pen angle, but later taught his hand using a slanted pen angle. He first referred to this hand as "Foundational Hand" in his 1909 publication, "Manuscript & Inscription Letters for Schools and Classes and for the Use of Craftsmen".