Section 1 - Introduction by Eujin Pei -- Section 2 - Design and Data by Christoph Klahn -- Section 3 - Processes by Dongdong Gu -- Section 4 - Post-processing, Testing and Inspection by Tao Sun -- Section 5 - Materials by Mario Monzon -- Section 6 - Education and Training by Maren Petersen -- Section 7 - Applications and Case Study Examples by Alain Bernard.