The document’s overall class is defined with this command, which is normally the first command in a LaTeX source file.
The following document class names are built into LaTeX. (Many other document classes are available as separate packages; see Overview of LaTeX.)
For a journal article, a presentation, and miscellaneous general use.
Full-length books, including chapters and possibly including front matter, such as a preface, and back matter, such as an appendix (see Front/back matter).
Mail, optionally including mailing labels (see Letters).
For documents of length between an
article and a
such as technical reports or theses, which may contain several chapters.
Standard options are described in the next section.