1. INTRODUCTION

2. GALAXY SAMPLES  
2.1. The Photometric Surveys  
2.2. Galaxy Selection  
2.3. Assess the Photometric Redshift Quality  
2.4. Galaxy Luminosity Functions  

3. THE METHOD AND BASIC QUANTITIES  
3.1. The Halo-Based Group Finder  
3.2. Survey Edge Effect  
3.3. Basic Quantities  

5. PROTO CLUSTER CANDIDATES  
5.1. Assessment Indicators  
5.2. Finding the Proto Cluster Candidates  

6. SUMMARY