The following classes are distributed with LaTeX:
article class described in LaTeX: A Document Preparation System.
book class described in LaTeX: A Document Preparation System.
report class described in LaTeX: A Document Preparation System.
letter class described in LaTeX: A Document Preparation System.
slides class described in LaTeX: A Document Preparation System,
formerly SLiTeX.
article.
Formerly the proc package.
article.
article. The document you are reading
now uses the ltxguide class. The layout for this class is likely
to change in future releases of LaTeX.
article. The layout for this class
is likely to change in future releases of LaTeX.
This class is the bare minimum (3 lines) that is needed in a
LaTeX class file. It just sets the text width and height, and
defines \normalsize. It is principally intended for debugging
and testing LaTeX code in situations where you do not need to
load a `full' class such as article. If, however, you are
designing a completely new class that is aimed for documents with
structure radically different from the structure supplied by the
article class, then it may make sense to use this as a base and add
to it code implementing the required structure, rather than
starting from article and modifying the code there.