1 INTRODUCTION  
2 A MODEL FOR GALAXY-GALAXY LENS STATISTICS  
2.1 Lensing probability and Magnification Bias  
2.2 Total lensed background  
2.3 Detecting arcs and counter images  
2.4 Selection on minimum SNR and angular size  
2.5 Number of lenses with lens light subtracted  
2.6 Accounting for the lens light profile  
3 MODEL RESPONSE TO INPUT PARAMETERS  
4 TESTING AGAINST OBSERVED LENS SAMPLES  
5 FORECAST OF STRONG LENS YIELDS IN SURVEYS  
6 RARE LENSES  
7 DISCUSSION  
8 CONCLUSIONS