The artistic features of calligraphy are mainly embodied in () and ().

Answer: lines and combinations

Unity of concreteness and abstraction

Analysis: The characteristics of calligraphy art include

(1) lines and combinations

Calligraphy is an art form that expresses the beauty of words through the combination and change of lines. It mainly uses pen and ink, structure and line combination to shape and express people's aesthetic taste. Calligraphy brushes are made of animal hair, including soft, hard and double brushes. They can show various lines such as thickness, light and shade, reality, square, thickness, rigidity and softness. Writing on rice paper with strong water absorption and permeability can produce dizzying interest and ink beauty, thus having beautiful pictures and making calligraphy art more attractive. The combination of calligraphy includes structure and composition. The "structure" of calligraphy includes the structure of words, as well as the size, density and skew of each word. The composition of calligraphy refers to the overall layout of the work, that is, the whole word should be intricate, dense, alternating, rhythmic and imposing, thus reflecting the inner charm of the whole work.

(2) the unity of concreteness and abstraction

There is a saying in the history of China that calligraphy and painting have the same origin, and Chinese characters really originated from pictographs. Therefore, not only the stippling of calligraphy characters is vivid, but also the font structure of characters is vivid. This makes calligraphy have certain concreteness. But in fact, the concreteness in calligraphy is different from that in painting, and even hieroglyphics have long been divorced from the concrete image of things. Calligraphy mainly uses line stippling as its artistic language, which can only express the calligrapher's thoughts and feelings in an abstract form.