Mikis D. Stasinopoulos is Professor of Statistics at the School of Computing and Mathematical Sciences, University of Greenwich. He is, together with Professor Bob Rigby, coauthor of the original Royal Statistical Society article on GAMLSS. He has also coauthored three books on distributional regression, and in particular the theoretical and computational aspects of the GAMLSS framework. Thomas Kneib is a Professor of Statistics at the University of Göttingen, Germany, where he is the Spokesperson of the interdisciplinary Centre for Statistics and Vice-Spokesperson of the Campus Institute Data Science. His main research interests include semiparametric regression, spatial statistics, and distributional regression. Nadja Klein is Emmy Noether Research Group Leader in Statistics and Data Science and Professor for Uncertainty Quantification and Statistical Learning at TU Dortmund University and the Research Center Trustworthy Data Science and Security. Nadja is member of the Junge Akademie and associate editor for 'Biometrics,' 'JABES,' and 'Dependence Modeling.' Her. Her research interests include Bayesian methods, statistical and machine learning, and spatial statistics. Andreas Mayr is a Professor at the Institute for Medical Biometry, Informatics, and Epidemiology at the University of Bonn, Germany. He has authored more than 100 research articles both in statistics as well as medical research and is currently Editor of the 'Statistical Modelling Journal,' Associate Editor of the 'International Journal of Biostatistics,' and Editorial Board Member of the 'International Journal of Eating Disorders.' Gillian Z. Heller is Professor of Biostatistics at the NHMRC Clinical Trials Centre, University of Sydney. She has coauthored four books in the regression modelling area, the first directed towards actuarial applications of the generalized linear model, and the remaining three focussing on distributional regression, in particular the GAMLSS framework.