平面设计是将作者的思想以图片的形式表达出来。可以将不同的基本图形，按照一定的规则在平面上组合成图案的。也可以以手绘方法去创作。主要在二度空间范围之内以轮廓线划分图与地之间的界限，描绘形象。而平面设计所表现的立体空间感，并非实在的三度空间，而仅仅是图形对人的视觉引导作用形成的幻觉空间。
Graphic design is the expression of the author's ideas in the form of pictures. Different basic shapes can be combined into patterns on a plane according to certain rules. Handdrawn methods can also be used for creation. The boundary between the map and the ground is mainly delineated by contour lines within a two-dimensional spatial range, depicting the image. The three-dimensional sense expressed by graphic design is not a real three-dimensional space, but only an illusion space formed by the visual guidance effect of graphics on people.
术语
term
1.和谐：从狭义上理解，和谐的平面设计是统一与对比两者之间不是乏味单调或杂乱无章的。广义上理解，是在判断两种以上的要素，或部分与部分的相互关系时，各部分给我们的感觉和意识是一种整体协调的关系。
1. Harmony: In a narrow sense, harmonious graphic design is not a monotonous or disorderly balance between unity and contrast. In a broad sense, when judging the relationship between two or more elements, or between parts, the feeling and consciousness that each part gives us is a coordinated relationship as a whole.
2.对比：又称对照，把质或量反差很大的两个要素成功的配列在一起，使人感觉鲜明强烈而又具有统一感，使主体更加鲜明、作品更加活跃。
2. Comparison: also known as contrast, the successful combination of two elements with significant differences in quality or quantity makes people feel distinct, strong, and unified, making the subject more distinct and the work more active.
3.对称：假定在一个图形的中央设定一条垂直线，将图形分为相等的左右两个部分，其左右两个部分的图形完全相等，这就是对称图。
3. Symmetry: Assuming a vertical line is set in the center of a graph, the graph is divided into equal left and right parts, and the shapes of the left and right parts are completely equal. This is called a symmetry graph.
4.平衡：从物理上理解是指的重量关系，在平面设计中指的是根据图像的形量、大小、轻重、色彩和材质的分布作用与视觉判断上的平衡。
4. Balance: Physically speaking, it refers to the relationship between weight, and in graphic design, it refers to the balance between visual judgment and the distribution of image shape, size, weight, color, and material.
5.比例：是指部分与部分，或部分与全体之间的数量关系。比例是构成设计中一切单位大小，以及各单位间编排组合的重要因素。
5. Ratio: refers to the quantitative relationship between parts or between parts and the whole. Proportionality is an important factor in determining the size of all units in a design, as well as the arrangement and combination of units.
6.重心：画面的中心点，就是视觉的重心点，画面图像的轮廓的变化，图形的聚散，色彩或明暗的分布都可对视觉中心产生影响。
6. Center of gravity: The center point of the image, which is the visual center of gravity, can be affected by changes in the outline of the image, the convergence and dispersion of graphics, and the distribution of color or brightness.
