Drawing is a visual art that makes use of any number of drawing instruments to mark a two dimensional medium. Common instruments include graphite pencils, pen and ink, inked brushes, wax color pencils, crayons, charcoals, markers, stylus, or various metals like silverpoint.
An artist who practices or works in drawing may be referred to as a draftsman or draughtsman.
A small amount of material is released onto the two dimensional medium which leaves a visible mark the process is similar to that of painting.
The most common support for drawing is paper, although other materials such as cardboard, plastic, leather. Temporary drawings may be made on a blackboard or whiteboard, or indeed almost anything. The medium has also become popular as a means of public expression via graffiti art.
Graffiti is the name for images or lettering scratched, scrawled, painted or marked in any manner on property. Graffiti is any type of public markings that may appear in the forms of simple written words to elaborate wall paintings.
Graffiti has existed since ancient times, with examples dating back to Ancient Greece and the Roman Empire. In modern times, spray paint, normal paint and markers have become the most commonly used materials. In most countries, defacing property with graffiti without the property owner consent is considered vandalism.
Sometimes graffiti is employed to communicate social and political messages. To some, it is an art form worthy of display in galleries and exhibitions to others it is merely vandalism. Graffiti has since evolved into a pop culture existence often related to underground hip hop music creating a lifestyle that remains hidden from the general public.
Graffiti is used as a gang signal to mark territory or to serve as an indicator or tag for gang related activity. The controversies that surround graffiti continue to create disagreement amongst city officials law enforcement and graffitists looking to display their work in public locations.
There are many different types and styles of graffiti and it is a rapidly developing artform whose value is highly contested, being reviled by many authorities while also subject to protection, sometimes within the same jurisdiction.
Learning is acquiring new knowledge, behaviors, skills, values, preferences or understanding, and may involve synthesizing different types of information.
The ability to learn is possessed by humans, animals and some machines. Progress over time tends to follow learning curves.
Human learning may occur as part of education or personal development. It may be goal oriented and may be aided by motivation. The study of how learning occurs is part of neuropsychology, educational psychology, learning theory, and pedagogy.
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