land­scape – Set up for type­set­ting in land­scape

The land­scape pack­age is long su­per­seded by the ge­om­e­try pack­age, which has so­phis­ti­cated con­trols on page lay­out.
If your need is for oc­ca­sional pages in land­scape lay­out, con­sider lscape, or ro­tat­ing for ro­tated float pages.