This book aims to record and present the history of contemporary Chinas reform and opening up to the international community in a panoramic manner, especially the new concepts, new thoughts, and new strategies for comprehensively deepening reform since the 18th National Congress of the Communist Party of China. The book uses big data on economic and social development, memorabilia, key achievements, etc. to present the facts in front of readers, and naturally reflects the profound meaning of Chinas reform and opening up policy contained in it.