1 INTRODUCTION  
2 PRELIMINARIES  
2.1 Notations  
2.2 Local Differential Privacy  
2.3 Data Aggregation under LDP  
3 STATISTICAL QUERY WITH LDP  
3.1 Frequency Estimation  
3.2 Mean Value Estimation  
3.3 Range Query Estimation  
3.4 Summary of Statistical Query with LDP  
4 PRIVATE LEARNING WITH LDP  
4.1 Supervised Learning  
4.2 Unsupervised Learning  
4.3 Private Learning in ERM  
4.4 Summary of Private Learning with LDP  
5 APPLICATIONS OF LOCAL DIFFERENTIAL PRIVACY  
5.1 Applications in Practice  
5.2 Applications in Various Domains  
5.3 Summary  
6 RESEARCH GAPS AND RESEARCH DIRECTION  
6.1 Research Gaps  
6.2 Research Directions  
7 CONCLUSION