There are 11 kinds of common explanation methods, such as giving examples, quoting, classifying, listing numbers, making comparisons, drawing charts, defining, making explanations, making metaphors, imitating appearances and making assumptions.

The common writing techniques are suspense, reference, association, imagination, combination of inhibition, point and surface, dynamic and static, narrative and discussion, scene blending, contrast and contrast, foreshadowing reference, description of objects, preparation of suspense, combination of positive and negative aspects, metaphor and symbol, borrowing from the past to satirize the present, expressing one's ambition, connecting the preceding with the following, getting to the point, and setting off the background.