[texhax] Tex and Latex

[Russell Shaw]

Hi,

I've just read a Tex and a Latex book. In latex, there's fonts from
small to Huge. What command in plain Tex gives those font sizes?

I'm writing a users/service manual and it doesn't fit into the
latex classes of book or report well. Is latex designed to be
easily adjusted so that i can change all the book-class numbering
and heading conventions for chapters/sections?