# Montage Viewer: Cookbook

The mViewer documentation pages contain command examples for most of the program's capabilites.

Here you can find image and table files that can be used to test out those commands.

In addition, we have a few worked examples to further illustrate how to achieve certain effects:

- Stretches There are a lot of options when it comes to stretching the data. This page describes the available stretches and some of the rationale that goes into choosing the right one for the data.
- Symbols Symbols in mViewer are actually accurately-drawn geometries on the sky. They can be used to give very detailed information on regions or catalog data.