landscape – Set up for typesetting in landscape
The landscape package is long superseded by the geometry package, which has sophisticated controls on page layout.
Maybe you are interested in the following packages as well.
- pdflscape: Make landscape pages display as landscape
- sober: Makes appearance of standard styles more "sober"
- espo: Customisation for Esperanto
- exam209: Process exam questions and answers (LaTeX 2.09)