# Mathematica Documentation

The *Mathematica* help system works with a highly
structured set of documents. Each document falls into
one of a number of categories, the most important of which
are guide pages, reference pages, and tutorials. Each of these
pages has a structure and style that matches that in
*Mathematica*.
These pages can intermingle with other pages that do not
follow the *Mathematica* help style.

A guide page focuses on a single topic, providing
links to functions that share functionality. Sections are provided
to link to other related documents. A sample guide page is shown
below.

A symbol or function page focuses on a single function or option, providing
its different input templates with corresponding usage, additional
notes including the function's options,
if any, and a set of examples. Sections are provided to link to other
related documents. A sample symbol page is shown
below.

A tutorial page focuses on a particular piece of functionality
and includes examples, tables with links and short descriptions
of useful functions,
and mathematical textbook-like information. Sections are provided
to link to other related documents. A sample tutorial page is shown
below.

An overview page provides a table of contents for other pages,
particularly tutorials. A sample overview page is shown
below; note that each entry in the overview page gives a link to
a target page.

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Alternative Formats

You can also add other pages to the *Mathematica* help system that
do not follow the structured system. How to do this is documented in
the alternative formats section.