...

Orkhon writing was generally written right to left. Occasionally it was written in boustrophedon style, in which case the individual letter shapes were reversed on alternate lines.

Font sizes

The font Noto Sans Old Turkic can be downloaded freely from the Google Noto Fonts site, searching for ‘Noto Sans Old Turkic’.

• Brill 11 pt  ~ Noto Sans Old Turkic 9.5 pt
• Brill 10 pt ~ Noto Sans Old Turkic 8.5 pt
• Brill 9 pt ~ Noto Sans Old Turkic 8 pt
• Brill 16 pt (chapter titles) ~ Noto Sans Old Turkic 14.5 pt

...

Language tags: otk (Old Turkish [IANA description]) and oui (Old Uyghur). Script tag: Orkh. At this time of writing (August 2021), only use the language-script tags otk-Orkh.

Windows and macOS

Windows fonts, as long as they are TrueType fonts (.ttf) or TrueType Collections (.ttc) can also be used on macOS.