With this issue of the journal, Development welcomes a new editor to the team. Judith Eisen works at the University of Oregon Institute of Neuroscience, where she uses zebrafish embryos and a combination of cellular,molecular and genetic approaches to study the way in which neuronal diversity is generated during development. In particular, she is interested in discovering how the correct numbers of cells are specified for specific neuronal fates at particular times and in particular locations. We are delighted that Judith is joining the team: she is a superb scientist, and she brings additional expertise in neural development to the journal, as well as being our first `zebrafish' editor.