2 TARGET SELECTION AND SURVEY DESIGN  
2.1 The LSS-GAC main survey  
2.2 Simulation with the Besançon model  
2.3 Target selection for the M31-M33 and VB Surveys  

3 OBSERVATIONS AND DATA REDUCTION  
3.1 Observations  
3.2 Data reduction  

4 RADIAL VELOCITIES AND STELLAR ATMOSPHERIC PARAMETERS  

5 EXTINCTION  

6 DISTANCES  

7 PROPER MOTIONS AND ORBITAL PARAMETERS  

8 SAMPLES  
8.1 The main sample  
8.2 The M31-M33 sample  
8.3 The VB sample  
8.4 Value-added catalogues  

9 SUMMARY