1 Introduction.- 2 Balanced Ranked Set Sampling I: Nonparametric.- 3 Balanced Ranked Set Sampling II: Parametric.- 4 Unbalanced Ranked Set Sampling and Optimal Designs.- 5 Distribution-Free Tests with Ranked Set Sampling.- 6 Ranked Set Sampling with Concomitant Variables.- 7 Ranked Set Sampling as Data Reduction Tools.- 8 Case Studies.- References.