knuth-letter – Knuth's example letter macros
These are Knuth’s own letter macros. Documentation is entirely missing from the archive, but the macros are discussed in some detail in the TeXbook (which says it is describing letterformat.tex).
|Maintainer||Donald E. Knuth|
|Contained in||TeX Live as plain|
|MiKTeX as miktex-tex-base|
typesetting letters, envelopes, faxes, etc|
extensions to Plain TeX for higher-level constructs