Most printers can rotate reports 90 degrees. This can permit wider printed lines, at the expense of fewer lines per page. Here are the two choices:
Portrait - The page is taller than it is wide. For example, a U.S. Letter-sized page will be oriented so that it is 8.5 inches wide, and 11 inches tall.
Landscape - The page is wider than it is tall. For example, a U.S. Letter-sized page will be oriented so that it is 11 inches wide, and 8.5 inches tall.