How to explain the sketch in painting? What do you mean?

Hello. Sketch, as its name implies, is a way to describe objective things in a simple way, usually using monochrome strokes and points, lines and surfaces to shape the body. Literally, sketch can be understood as monochrome painting. Broadly speaking, it is an art form that reproduces things with lines, and it is by no means as narrow as pencil drawing we usually understand. In fact, the choice of sketching tools depends on the individual's painting ability and the needs of the object. Nowadays, the choice and exertion of personal wishes have been fully respected. The expression techniques are becoming more and more diverse ~

And ~

1. Sketch: Description of drawing with lines or monochrome and achromatic colors. It is the foundation of plastic arts.

2. Sketch refers to drawing an object with a monochrome black artistic pen such as a pencil or charcoal pen, drawing a block with lines, and then drawing it in black, white and gray. Thus, the dividing line between light and shade, dark part, bright part and highlight of an object is displayed on paper in a three-dimensional way, which is the characteristic of sketch.

3. As the name implies, sketch is a simple description, which refers to the painting form of using monochromatic lines or blocks to shape the shape, structure, texture, space and light of objects, and is the basis of all plastic arts. Originated from western painting, it is generally used as a basic training method for painting, sculpture and other arts.