Sketch (drawing)
Quickly executed freehand drawing
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Through Drawing, Charcoal and Watercolor painting
Sketches can be made in any drawing medium. The term is most often applied to graphic work executed in a dry medium such as silverpoint, graphite, pencil, charcoal or pastel. It may also apply to drawings executed in pen and ink, digital input such as a digital pen, ballpoint pen, marker pen, water colour and oil paint. The latter two are generally referred to as "water colour sketches" and "oil sketches". A sculptor might model three-dimensional sketches in clay, plasticine or wax.
Methods
The two methods in sketching are line drawing and shading.
Line art
A line drawing is the most direct means of expression. This type of drawing without shading or lightness, is usually the first to be attempted by an artist. It may be somewhat limited in effect, yet it conveys dimension, movement, structure and mood; it can also suggest texture to some extent.
Shading
"Line gives character, but shading gives depth and value – it is like adding an extra dimension to your sketch."
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Advanced techniques
Pencil painting
When the pencil is handled almost as if it was a brush, resulting a paintlike quality, then the technique is called Pencil Painting.
Wash and benzine
Starting with a pencil drawing first, then washing over the pencil areas with a sable haired water color brush dipping it into the benzine is called wash and benzine. Benzene does not itself add color, but merely modifies the shaded pencil areas.
Uses
Sketching is generally a prescribed part of the studies of art students. This generally includes making sketches (croquis) from a live model whose pose changes every few minutes. A "sketch" usually implies a quick and loosely drawn work, while related terms such as study, modello and "preparatory drawing" usually refer to more finished and careful works to be used as a basis for a final work, often in a different medium, but the distinction is imprecise. Underdrawing is drawing underneath the final work, which may sometimes still be visible, or can be viewed by modern scientific methods such as X-rays.
Most visual artists use, to a greater or lesser degree, the sketch as a method of recording or working out ideas. The sketchbooks of some individual artists have become very well known, including those of Leonardo da Vinci and Edgar Degas which have become art objects in their own right, with many pages showing finished studies as well as sketches. The term "sketchbook" refers to a book of blank paper on which an artist can draw (or has already drawn) sketches. The book might be purchased bound or might comprise loose leaves of sketches assembled or bound together.
Sketching is also used as a form of communication in areas of product design such as industrial design. It can be used to communicate design intent and is most widely used in ideation. It can be used to map out floor plans of homes.
The ability to quickly record impressions through sketching has found varied purposes in today's culture. Courtroom sketches record scenes and individuals in law courts. Sketches drawn to help authorities find or identify wanted people are called composite sketches. Street artists in popular tourist areas sketch portraits within minutes.