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A line is a mark made on a surface that joins different points. Lines can vary in length, width, direction and shape. Artists and designers can use lines for many different reasons:

Lines can show the subject's physical appearance:

• the outline of shapes and objects
• details of features and patterns
• surfaces and texture
• tone, light and shade

Lines can suggest something more than just what can be seen:

• movement
• mood and atmosphere
• the subject's emotions
• the artist's emotions and ideas