1. Linear perspective: It is a monocular depth cue in that causes parallel lines to appear to meet at some point in the distance. 2. Relative size: Relative size is a perceptual clue which allows you to determine how close objects are to an object of known size. 3. Common region: The principle of common region is perceiving things as being grouped together. 4. Depth Perception: is the visual ability to perceive the world in three dimensions, coupled with the ability to gauge how far away an object is. 5. Continuity: Referring to the ability to continue on the same way continuously indefinitely. 6. Closure: is the illusion of seeing an incomplete stimulus as though it were whole. 7. Focal point: It is a behavior setting that is accessible to a large number of people in a geographical area 8. Figure-ground: It refers to the tendency of the visual system to simplify a scene into the main object that we are looking at. 9. Similarity: The human eye tends to build a relationship between similar elements within a design. Similarity can be achieved using basic elements such as shapes, colors, and size. 10.Proximity: States that things that are close together appear to be more related than things that are spaced farther apart.