Editorial of the Special Issue "Skewed (Asymmetrical) Probability Distributions and Applications across Disciplines".

In the following text, we comment on the main goals and results of these contributions: The first one, I Multistage Estimation of the Scale Parameter of Rayleigh Distribution with Simulation i [[1]], analyses the sequential estimation of the scale parameter of the Rayleigh distribution using the three-stage sequential sampling procedure developed by Hall [[15]]. The asymptotic behaviour of the proposed procedure is analysed in relation to point estimation and confidence interval estimation. In the second paper, I Multistage Estimation of the Rayleigh Distribution Variance i [[2]], the authors discuss the sequential multistage estimation of the variance of the Rayleigh distribution through the three-stage procedure developed by Hall [[15]]. The asymptotic distribution of the maximum likelihood estimator of the lifetime performance index is used to develop the testing procedure. [Extracted from the article]