How Steel Was Tempered is a novel with Pavel Kochagin as the protagonist. It tells the story of his growing up in a family of steel workers in the Soviet Union and his struggles in the revolutionary struggle, industrialization, and the construction of society. Paul had shown extraordinary talent and talent in his childhood. His outstanding performance in a math competition caught the teacher's attention. The teacher decided to take him as his student and sent him to the best math school. At school, Paul met many like-minded people. They studied together, joined sports teams together, and played table tennis together. These experiences made Paul realize that only through collective strength could he truly realize his personal value. After graduating from high school, Paul did not choose to go to university but joined the Soviet Union's revolutionary movement. He took part in many battles, including the battle of Leningrador and the battle of Stalingrador. These experiences not only made him an excellent soldier, but also made him deeply aware of the hardships and necessity of revolution. After the revolution, Paul joined the steel industry in the Soviet Union and became a steel worker. He performed well in his work and soon became a technical expert and was promoted. He also met many like-minded colleagues, and with their help, Paul's work efficiency was improved, and at the same time, he deepened his understanding of collectivism and the working class. In the process of the Soviet Union's industrialization, Paul actively participated in the construction of new factories. He had a deep understanding of the necessity and importance of industrialisation, as well as the importance of workers in industrialisation. He encountered many difficulties and challenges in the process of building the factory, but he persevered and finally succeeded in building the factory. During the process of building the Soviet Union, Paul actively participated in political activities and joined the camp of the socialists. He had a deep understanding of the necessity and importance of building a society, and at the same time, he also recognized the importance of the working class. He performed well in politics and became an outstanding politician.