This book is a commemorative book about the 50th anniversary of Nanjing Yangtze River Bridge. The designers participated in the editorial work and divided the book into four parts to introduce this historical witness with historical value. These four parts include the construction of the bridge, the national creation of the bridge, the bridge reflected in daily life, and the bridge appearing on daily necessities. From the state to the society, from the collective to individual, the bridge is introduced in all directions as a historical and the special role of a witness to the times.