At the 19th National Congress, the Communist Party of China (CPC) recognized Xi Jinping Thought on Socialism with Chinese Characteristics for a New Era as the theoretical guidance that it will adhere to for a long period of time。 This step forward provides a clear guide to action: first, in the decisive stage of completing a moderately prosperous society in all respects, second, on a new journey to fully build a modern socialist China, and third, in realizing the Chinese Dream of national rejuvenation。 Xi Jinping is the principal proponent of this Thought。The two volumes are an integrated whole when studying Xi Jinping Thought on Socialism with Chinese Characteristics for a New Era。 They present the developments and major contents of the Thought; record how the CPC Central Committee, with Xi Jinping as the core, has united and led the whole Party and the whole nation in developing socialism with Chinese characteristics in the new era; and embody the Chinese wisdom and Chinese solutions that the CPC has contributed to building a community of shared future for mankind and promoting peace and development。 They will be an authoritative source through which readers can learn about Xi Jinping Thought on Socialism with Chinese Characteristics for a New Era and about the guiding principles of the 19th CPC National Congress。This volume is thus republished。