Abstraction takes place mentally as in art and in science. For example, African American, Chinese and European can be abstractly represented as black, yellow and white spots - and they can continue to manipulate my thoughts. For example, 3 spots together is the friendship of peoples. Abstraction is the simplifying to single out any one important feature, and delete the rest. See pictures in the category of abstract and graphics and try to guess what the author thought of the images. If you like the concept feel free to put yourself in the picture with the abstraction to the desktop.