Three Officials and Three Farewells are all poems describing people's livelihood, people's living conditions and social conditions. The famous song "Chelinlin, Ma Xiaoxiao and each of you has a bow and an quiver on his belt" describes people's living conditions in the war. He not only wrote the facts of the war, but also described the people's feelings and social conditions, so he was called "the history of poetry". In addition, his writing style is calm and heavy, without much imagination and exaggeration, like history.
I suggest you choose a specific poem to analyze. Your topic is too general.