  The current Special Issue of The Annals of Statistics contains three invited
articles. Javier Rojo discusses Erich's scientific achievements and provides
complete lists of his scientific writings and his former Ph.D. students. Willem
van Zwet describes aspects of Erich's life and work, enriched with personal and
interesting anecdotes of Erich's long and productive scientific journey.
Finally, Peter Bickel, Aiyou Chen and Elizaveta Levina present a research paper
on network models: they dedicate their contribution to Erich, emphasizing that
their new nonparametric method and issues about optimality have been very much
influenced by Erich's thinking.
