1. INTRODUCTION  
2. METHODOLOGY  
2.1. The HETDEX Survey  
2.2. Sample Selection  
2.3. Counterpart Identification  
3. RESULTS  
4. DISCUSSION  
5.1. Are HETDEX LAEs Special?  
5.2. Which Properties Drive Ly α Emission?  
6. PREDICTING LYMAN-ALPHA EMISSION IN THE EPOCH OF REIONIZATION  
7. SUMMARY