1. INTRODUCTION  
2. THE 3D-DASH PROGRAM  
2.1. Drift And Shift (DASH)  
2.2. Observations  
3. THE 3D-DASH IMAGING MOSAIC  
4. EXAMPLE IMAGES AND SCIENCE CASES  
4.1. Massive Close Pairs  
4.2. Massive Star-Forming Galaxies  
4.3. Cosmic Noon Counterparts of Massive Galaxies  
5. SUMMARY AND OUTLOOK