1 INTRODUCTION  
1.1 So what? Who cares?  
1.2 Purpose of this survey  
1.3 Related surveys  
1.4 Organization  

2 BACKGROUND INFORMATION  
2.1 The evolution of the problem  
2.2 Humans recognizing kinship in photos  
2.3 Data challenges and incentives  

3 VISUAL KINSHIP PROBLEMS  
3.1 Kinship verification  
3.2 Family classification  
3.3 Tri-subject verification  
3.4 Search and retrieval  
3.5 Multi-modal data  
3.6 Kin-based facial synthesis  

4 EXPERIMENTAL  
4.1 Task Evaluations, Protocols, Benchmarks  

5 METHODOLOGIES  
5.1 Traditional approaches  
5.2 Deep learning approaches  
5.3 Generative modeling approaches  

6 TECHNICAL CHALLENGES  
6.1 Current limitations SOTA  
6.2 The nature  
6.3 The environment  
6.4 The data and its distribution  

7 APPLICATIONS  

8 DISCUSSION  
8.1 Broader impacts  
8.2 Future work  
8.3 Conclusion