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The landscape package is long superseded by the geometry package, which has sophisticated controls on page layout.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.
- pos-at: Position things at absolute positions on the page
- sober: Makes appearance of standard styles more "sober"
- lscape: Place selected parts of a document in landscape
- placeins-plain: Insertions that keep their place