Topic plain-ext
extensions to Plain TeX for higher-level constructs
Automagic numbering in Plain TeX
Extended plain tex macros
Floating figures in Plain TeX
Changing fonts, sizes and encodings in Plain TeX
Macros to change text and mathematics fonts in plain TeX
Font selection for plain TeX
LaTeX-style graphics for Plain TeX users
Macros for scientific articles
A "HighStyle" environment for TeX
Basic support for multiple languages in Plain TeX
Macros for managing large font collections
Damian Cugley's document tools
Font selection for Plain TeX
LaTeX support for Romanian
Table of contents macros for Plain TeX
Plain TeX table of contents macros
Knuth's two-column output macros
Print two pages on a single page
Two-side typesetting in Plain TeX