This book fully absorbs the latest achievements in party history research, and in the form of combining history and theory, focuses on describing and evaluating major historical events and important historical figures, major policies and important strategic deployments, major theoretical innovations and their development history; The principles of why can, why Marxism does, and why socialism with Chinese characteristics is good; focus on promoting the lofty revolutionary spirit and demeanor of the Chinese Communists; deeply interpret the internal logic hidden in historical changes, behind the historical achievements The road, theory, system, and cultural advantages of China. This publication is in English, and the English version of the book has been selected into the 2020 Foreign Publishing and Exhibition Project by the Central Propaganda Department.