> This thread has mentioned Kernighan's troff tutorial > http://cm.bell-labs.com/7thEdMan/index.html > Of course it lacks the modest, but very helpful, > groff extensions, but it's a great base document.
There's also a useful tutorial on writing a simple general-purpose macro package at the end of the Troff User's Manual (CSTR #54) http://cm.bell-labs.com/cm/cs/cstr/54.ps.gz
