Cover picture: A three-dimensional reconstruction from confocal images of inner hair cells from the mouse cochlea. Hair cells are visualized by immunofluorescent staining against the cytosolic protein calretinin (green). BK channels (red) in inner hair cells are clustered away from synapses formed by the afferent projections (cyan). For details, see the article by Pyott et al. in this issue (pages 9469–9474).