1. Introduction  
1.1. Notation  

2. Public lensing surveys  
2.1. HSC-SSP S16a  
2.2. CFHTLenS  
2.3. KiDS DR4  
2.4. DES SV1  
2.5. RCSLenS  

3. Cluster samples  
3.1. Planck PSZ2  
3.2. The SDSS redMaPPer catalogue  
3.3. AMICO clusters in the XXL-HSC field  
3.4. CAMIRA clusters in HSC-SSP S16a  
3.5. AMICO clusters in KiDS-DR3  

4. Background source selection  
4.1. Photometric redshifts  
4.2. Colour–colour  

5. WL signal  
5.1. Signal definition  
5.2. Signal measurement  
5.3. Calibration  
5.4. Signal-to-noise  

6. Mass inference  
6.1. Halo model  
6.3. Priors  

7. Consistency tests  

8. WL signal accuracy  

9. Mass accuracy  
9.1. Mass point-estimators  
9.2. Halo model  
9.3. Clusters covered by multiple surveys  
9.4. Comparison with the WL mass from literature  
9.5. Discussion  

10. Mass precision  
10.1. Intermediate and massive clusters  
10.2. Small groups  
10.3. Semi-analytical forecasting  
10.4. Forecast from Stage-III surveys or precursors  
10.5. Forecast from AMICO XXL-HSC  
10.6. Discussion  

11. Systematics  

12. Conclusions