Safari Books Online is a digital library providing on-demand subscription access to thousands of learning resources.
You can change the direction that text prints from the standard portrait orientation of 8½ inches × 11 inches to landscape orientation of 11 inches × 8 ½ inches.
To remember the difference between the orientations, think of paintings. Leonardo da Vinci painted his famous Mona Lisa portrait with the canvas oriented vertically. Georges Seurat painted his famous Sunday Afternoon on the Island of La Grande Jatte landscape with the canvas oriented horizontally.