1. Introduction and overview -- 2. Nonparametric tests for the location problem -- 3. Tests in the case of heteroscedasticity -- 4. Tests for the general alternative -- 5. Ordered categorical and discrete numerical data -- 6. The conservatism of permutation tests -- 7. Further examples for the comparison of two groups -- 8. One-sample tests and tests for paired data -- 9. Tests for more than two groups -- 10. Independence and correlation -- 11. Stratified studies and combination of p-values -- 12. Nonstandard situations and complex designs -- 13. Estimation and confidence intervals.